php 导入csv数据到mysql数据库_PHP教程
class Import{
var $csv_fields=array(); //fields in csv to care about...
var $csv_file; //file to open
var $csv_data; //data in file
var $csv_array = array(); //array of data in file
var $csv_all_fields = array(); //all the field names in the csv file
var $csv_data_all = array(); //all the data
var $csv_data_keyed = array(); //all the data
var $tmp_array=array();
var $mysql_array=array();
var $table; //table to insert into
var $mysql_link; //database
var $instructions=array(); //sql and default settings
var $instruct_functions = array(); //function calls
var $debug=0; // show debug information - step by step messages
var $return_debug=0; // return debug information instead of echoing it
var $vals_per_insert=100; //number of values to add per insert statement of SQL
var $format="linux";
var $linebreak_char="n";
var $delimit_char = ",";
var $use_external_csv_header_file = 0;
var $external_headers="";
function Import(){
echo "n";
return(TRUE);
}
var $resetProgress=0;
function reset_class_state(){
$this->dmsg("Resetting class state", 2);
$this->csv_data_all = array();
$this->csv_fields = array();
$this->csv_data_keyed = array();
$this->tmp_array = array();
$this->mysql_array = array();
$this->instructions = array();
$this->instruct_functions = array();
$this->error_messages = "";
$this->output_sql = "";
$this->resetProgress=1;
$this->dmsg("Ready for new table and data definitions", 2);
}
function set_delimit_char($ch){
$this->delimit_char = $ch;
$this->dmsg("Set delimiter character to $ch", 2);
}
function debug($d=0,$r=0){
$this->debug=$d;
$this->return_debug=$r;
}
var $y=1;
var $error_messages="";
var $debug_level = 1;
function set_debug_level($dl=1){
$this->debug_level = $dl;
}
function dmsg($string, $dlvl=1){
global $PHP_SELF;
//debug level - 1-4 //1 is status messages only - 4 is full debugging
if($dlvl debug_level){
if($this->debug){
if(!$this->return_debug){
if($PHP_SELF){
echo "• ".$string."
n";
}else{
echo "n# $string ";
}
}else{
$this->error_messages .="# $string
n";
}
$this->y++;
}
}
}
var $terminal_width=100;
var $queries_per_dot = 20;
function progress_guess(){
$calculations_to_perform = `wc -l $this->csv_file`;
$funcs_per_row = count($this->instruct_functions);
$total_function_calls = $calculations_to_perform * $funcs_per_row;
$this->queries_per_dot = round($total_function_calls / 100);
$this->dmsg("functions: $total_function_calls function calls to be made - dots at $this->queries_per_dot calls per dot", 3);
}
function set_terminal_width($w){
$this->terminal_width=$w;
}
function set_resetProgress($on=1){
$this->resetProgress=1;
}
function show_progress_meter(){
static $count=0;
static $first=1;
static $ticker=0;
//reset class state triggers this action
if($this->resetProgress){
$count=0;
$first=1;
$ticker=0;
$this->resetProgress=0;
}
if($this->debug){
if($count == 0 && $first){
echo "n#";
$first=0;
}
if($count > $this->terminal_width ){
echo "n#";
$count=0;
}
//queries per dot
if($ticker == $this->queries_per_dot){
echo ".";
$ticker=0;
$count++;
}else{
$ticker++;
}
}
}
function blank_error_messages(){
$this->error_messages = "";
}
function get_error_messages(){
return($this->error_messages);
}
function add_field_alias($csv_field, $mysql_field){
//add element to array
$this->csv_fields[$csv_field] = $mysql_field;
if(ereg("^TMP__", $mysql_field)){
$this->dmsg("added temporary field alias $csv_field --> $mysql_field", 2);
}else{
$this->dmsg("added field alias $csv_field --> $mysql_field", 2);
}
}
//only call this after calling read_csv_file - otherwise array will be missing.
//ALSO - ONLY CALL AFTER create_csv_data_array() has been called for any initial add_field_alias values.
//otherwise these fields are missing from the end array but no warnings are dipsplayed!! :(
function duplicate_field($csv_field, $mysql_field){
if(!is_array($this->mysql_array)){
echo "Run read_csv_file($file) first to create necessary arrays"; die();
}
reset($this->mysql_array);
while(list($key, $this->field) = each($this->mysql_array)){
$this->mysql_array[$key][$mysql_field] = $this->csv_data_all[$key][$csv_field];
}
reset($this->mysql_array);
$this->dmsg("duplicated field $csv_field --> $mysql_field", 1);
}
function use_external_headers($headerfile){
$this->dmsg("Reading in external csv headers from $headerfile.", 2);
if(file_exists($headerfile)){
$fd = fopen($headerfile, "r");
$this->external_headers = fread($fd, filesize($headerfile));
$this->external_headers = trim($this->external_headers);
fclose($fd);
$this->use_external_csv_header_file = 1;
}else{
$this->dmsg("Error - csv header file $headerfile does not exist!" );
die();
}
$this->dmsg("Got headers:n $this->external_headers", 2);
}
//clean file will replace commas quotes and apostrophies with safe alternatives -
//create_sql knows about the aliases and flips them back in the final sql output
function clean_file($text){
$rows = explode($this->linebreak_char,$text);
$return = "";
while(list($key,$val)=each($rows)){
//replace commas apostrophies and quotes.... these are flipped back to propper values in the create_sql function
$val = preg_replace("/,"(.*)([,])(.*)",/", ',"1,3",', $val, -1);
$val = str_replace("""", ""e;", $val);
$val = str_replace("'", "&appos;", $val);
$return .= $val."n";
}
return($return);
}
var $pages = array();
function find_xls_pages($file){
$command = " xlhtml -dp -asc $file";
$xls_detail = `$command`;
$this->dmsg($xls_detail);
}
//function can read xls files and create the necessary arrays from that (by using xlhtml application to craete a csv in /tmp)
function read_xls_file($file){
//use xlhtml to convert...
$this->dmsg("checking if xlhtml is installed...", 3);
$xlhtml_check = `which xlhtml 2>/dev/null`;
if(strlen($xlhtml_check)==0){
$this->dmsg("You must install xlhtml to be able to import xls files directly into csv2mysql", 1);
die("n# Script Endedn");
}
$this->dmsg("$xlhtml_check");
$tmpfilename="/tmp/TMPCSV2MYSQL.CSV";
$this->find_xls_pages($file);
$command = "$xlhtml_check -csv -xp:0 $file > $tmpfilename";
$this->dmsg("Running command $command");
exec($command);
$this->read_big_csv_file($tmpfilename);
}
var $fd;
function read_csv_file($file){
//call better function - reads in file line by line
$this->read_big_csv_file($file);
}
var $buffer;
var $csvfields;
var $csv_all_possible_fields = array();
var $csvFields = array();
function read_big_csv_file($file){
$this->dmsg("Reading data from csv file: $file", 1);
$this->csv_file = $file;
if(!$this->fd=fopen($this->csv_file, "r")){
echo "Unable to open csv filenn"; die();
}
/*
$x=0;
while(!feof($this->fd)){
$this->buffer = fgets($this->fd, 4096);
$this->csv_data .= $this->buffer;
$x++;
}
*/
//creates an array called data....
while($data = fgetcsv($this->fd, 1000, $this->delimit_char)){
$num = count($data);
$count=1;
foreach($data as $cell){
$cell = str_replace(""", ""e;", $cell);
$cell = str_replace("'", "&appos;", $cell);
$cell = str_replace(",", ",", $cell);
$this->csv_data .= $cell;
if($count $this->csv_data .= $this->delimit_char;
$count++;
}
}
$this->csv_data .= $this->linebreak_char;
}
//die($this->csv_data);
//clean file will replace commas quotes and apostrophies with safe alternatives -
//create_sql knows about the aliases and flips them back in the final sql output
//$this->csv_data = $this->clean_file($this->csv_data);
//if we are using an external header file then add the headers to the top of the read in data for simplicities sake...
if($this->use_external_csv_header_file){
$this->csv_data = $this->external_headers."n".$this->csv_data;
}
/* create array of the field names */
$this->csvfields = explode($this->linebreak_char, $this->csv_data);
$this->csv_all_possible_fields = $this->csvfields[0];
//explode these on commas
$this->csvfields = explode($this->delimit_char, $this->csv_all_possible_fields);
foreach($this->csvfields as $field){
$this->csvFields[] = addslashes($field);
}
$this->dmsg("Finished reading data from csv file", 2);
}
var $tmp;
function set_format($format){
$this->format = $format;
if($format == "win"){
$this->linebreak_char = "rn";
$this->tmp = "rn";
}else{
$this->linebreak_char = "n";
$this->tmp = "n";
}
//$this->dmsg("Line break format set to ".addslashes($this->linebreak_char));
$this->dmsg("Line break format set to $this->tmp", 2);
}
var $lines;
var $stripQuotes = 1;
function setStripQuotes($on=1){
$this->stripQuotes = $on;
}
//function will create csv_data_all array - keyed on csv field names holding values.
function create_csv_data_array(){
if(empty($this->csv_data)){
echo "No data in csv file $this->csv_filen"; die();
}
$this->lines = array();
$this->csv_data_all = array();
$this->dmsg("Started to create data array", 1);
$this->lines = explode($this->linebreak_char, $this->csv_data);
foreach($this->lines as $line){
if(!empty($line)){
$values = explode($this->delimit_char, $line);
//strip the " tags wrapping the strings...
foreach($values as $k=>$v){
if($this->stripQuotes){
$len = strlen($v)-1;
//are the first and last characters quotes?
$v = stripslashes($v);
if(ereg("^".+"$", $v)){
//if so replace them with spaces and then trim them off
//$v[0] = " ";
//$v[$len] = " ";
//$v = trim($v);
//$v = str_replace(""", "", $v);
}
}
$v = str_replace(""", "", $v);
//$values[$k] = addslashes($v);
$values[$k] = $v;
}
$this->csv_array[] = $values;
}
}
$this->csv_all_fields = $this->csv_array[0];
//skip line 1 as this is the csv definition then run through the array -
//create a new array keyed on the field names of the csv and holding the values
$count=0;
reset($this->csv_array);
while(list($foo,$el)=each($this->csv_array)){
if($count>0){
foreach($el as $key=>$val){
$this->csv_data_keyed[$this->csv_all_fields[$key]]=$val;
}
$this->csv_data_all[] = $this->csv_data_keyed;
}
$count++;
}
reset($this->csv_array);
$this->dmsg("finished creating initial data array", 2);
$this->convert_array_to_mysql_keys();
}
function convert_array_to_mysql_keys(){
reset($this->csv_data_all);
$this->dmsg("creating keyed data array", 2);
//loop through all specified fields - create new array keyed on the specified aliases.
reset($this->csv_data_all);
while(list($foo,$data)=each($this->csv_data_all)){
foreach($this->csv_fields as $key=>$field){
$this->tmp_array[$field] = $data[$key];
}
$this->mysql_array[] = $this->tmp_array;
}
reset($this->csv_data_all);
}
var $sql;
var $result;
var $tbl_structure;
var $mysqlFields = array();
//specify database table to insert into.....
function specify_table($table){
$this->table = $table;
$this->dmsg("looking at database table $table", 2);
$this->sql = "desc $this->table";
$this->result = mysql_query($this->sql, $this->mysql_link) or die(mysql_error());
while($rows = mysql_fetch_array($this->result, MYSQL_ASSOC)){
$this->tbl_structure[] = $rows;
$this->mysqlFields[] = $rows['Field'];
}
$this->dmsg("finished looking at table $table", 2);
}
//adds a static alias - if you always want field "foobar" to say "hello" then add_static_alias("foobar", "hello"); will do this for every row
function add_static_alias($field, $value){
$this->add_db_instruction($field, $value);
}
//add an sql instruction for a particular field
function add_db_instruction($field, $sql, $key=""){
$instruct['field'] = $field;
$instruct['sql'] = $sql;
$instruct['select_key'] = $key;
$this->instructions[]=$instruct;
$this->dmsg("added db instruction or static alias for $field", 2);
$this->set_resetProgress();
}
function add_function_instruction($field, $functionname, $args){
$instruct['field'] = $field;
$instruct['function_name'] = $functionname;
$instruct['args'] = $args;
$this->instruct_functions[] = $instruct;
$this->dmsg("added function instruction for $field", 2);
$this->set_resetProgress();
}
//execute function instructions
var $call;
function get_function_instruction_values(){
$this->progress_guess();
$this->dmsg("calculating values for function instructions", 2);
reset($this->mysql_array);
while(list($key,$element)=each($this->mysql_array)){
foreach($this->instruct_functions as $function){
$this->call = "$function_result = ".$function['function_name'];
//split the arguments up to calculate values...
$args = explode(",", $function['args']);
$arg_call = "";
$num_args = count($args)-1;
$count=0;
//get the arg values
foreach($args as $arg){
$arg = trim($arg);
$arg_call.=""".$element[$arg].""";
if($count $arg_call .= ",";
}
$count++;
}
//add arg values to end of function
$this->call.="(".$arg_call.");";
//eval the created function call - variable function_result populated with return value
//die($this->call);
$this->dmsg("Run function instruction : $this->call", 4);
$this->show_progress_meter();
eval($this->call);
//add the value to the mysql_array
$this->mysql_array[$key][$function['field']] = $function_result;
}
}
reset($this->mysql_array);
}
//execute db instructions
var $product_id;
function get_instruction_values(){
$this->dmsg("calculating values for db instructions", 2);
reset($this->mysql_array);
while(list($key,$element)=each($this->mysql_array)){
foreach($this->instructions as $ins){
if(eregi("SELECT", $ins['sql'])){
$ins['sql'] = stripslashes($ins['sql']);
$this->select_key = $ins['select_key'] ;
//if we havent yet got a value for this...
if(!isset($this->mysql_array[$key][$ins['field']])){
$this->mysql_array[$key][$ins['field']] = $this->run_sql_query($ins['sql'], $element[$this->select_key]);
}
}else{
$this->mysql_array[$key][$ins['field']] = $ins['sql'];
}
}
$this->show_progress_meter();
}
reset($this->mysql_array);
}
var $runsql;
var $dbrows;
var $dbkey;
//not what you'd think function -- this is for evaling code - for the instructions.
//TODO rename function to a more logical name reflecting what it does better.
function run_sql_query($sql, $dbkey){
$this->runsql = stripslashes($sql);
$this->dbkey = $dbkey;
//eval the code into this->runsql -
//this makes the dbkey get populated with a value instead of being a string
eval("$this->runsql = "$this->runsql";");
$this->dmsg("running sql query..$this->runsql", 4);
//run query and return result
$this->result = mysql_query($this->runsql, $this->mysql_link) or die(mysql_error());
while($rows = mysql_fetch_array($this->result, MYSQL_ASSOC)){
$this->dbrows = $rows['result'];
$this->dmsg("$this->runsql returns: $this->dbrows", 4);
}
$this->dmsg("$this->runsql returns: $this->dbrows", 4);
return($this->dbrows);
}
//connect to the database
function db_connect($host, $user, $pass, $db){
$this->dmsg("connecting to database", 2);
$this->mysql_link = mysql_pconnect("$host", "$user", "$pass") or die(mysql_error());
if($this->mysql_link){
mysql_select_db($db);
}
}
var $specified_fields=array();
var $sql_error=0;
var $error_fields = array();
//check that all the fields required for the table are present and correct....
function validate_sql(){
$this->dmsg("validating array elements to generate sql from", 1);
reset($this->mysql_array);
//step through elements in array, foo is an unused variable.
while(list($foo,$this->element)=each($this->mysql_array)){
//dont mind a foreach here- tiny array to play with...
foreach($this->element as $this->field=>$val){
//make an array of the field names that have been specified...
if(!in_array($this->field, $this->specified_fields)){
$this->specified_fields[] = $this->field;
}
}
}
reset($this->mysql_array);
//upon errors this will be true - causing die below to spring to life...
$this->sql_error=0;
//loop through the tables fields - create array
foreach ($this->tbl_structure as $this->field){
//if the field is not in the array of specified fields and it has no default value
// and the field in question is not a primary key- moan
if(!in_array($this->field['Field'], $this->specified_fields)
&& ($this->field['Default']=="")
&& ($this->field['Key'] != 'PRI')
&& ($this->field['Extra'] != 'auto_increment')
&& ($this->field['NULL'] != "YES" ) ){
$this->dmsg( "{$this->field['Field']} has no default and you have not specified a value for this field.", 1);
$this->sql_error=1;
$this->error_fields[] = $this->field['Field'];
}else{
$this->dmsg( "{$this->field['Field']} has been verified.", 4);
}
}
#IF THIS VAR IS SET THEN SOMETHING ERRORED - REPORT THIS WITH A MESSAGE.
if($this->sql_error){
echo $this->error_messages;
$this->csv_data_all = array();
if(function_exists("render_page_head")){
echo render_page_head();
}
$erst="";
foreach($this->error_fields as $f){
$erst.="Field ".$f." has no default
";
}
die("n$erst Please specify values for the missing fields please add definitions for these fields.");
}
}
var $element;
var $output_sql;
var $insert_into;
var $values;
var $all_values = array();
var $insert_line;
function create_sql($show=0){
//check all array elements are present and correct...
$this->validate_sql();
$this->dmsg("creating sql", 1);
#TODO: THIS IS NOT VERY CLEVER MEMORY MANAGEMENT - IT WOULD BE BETTER NOT TO CREATE
# EACH VALUE LINE AND SAVE IN AN ARRAY - IF THERE ARE 10,000 RECORDS THIS WILL KILL
# PHP AND THE LINUXBOX - LOCKUP COMPLETELY ALT+SYSREQ+S+U+B TO RECOVER MACHINE!!!!
# OUTPUTTING EACH LINE AS IT WAS CREATED WOULD BE MUCH LESS PROCESSOR INTENSIVE.
$this->values = "";
//loop through each row to be entered
reset($this->mysql_array);
$this->all_values = array();
while(list($foobar,$this->element)=each($this->mysql_array)){
//loop through each field name and value
$num=count($this->element)-1;
$x=0;
//blank data
$this->insert_into = "";
$this->values = "(";
foreach($this->element as $field=>$val){
//do not include temporary fields - these can be used for the function fields
if(!ereg("^TMP__", $field )){
$val = str_replace(""e;", """, $val);
$val = str_replace(",", ",", $val);
$val = str_replace("&appos;", "'", $val);
$this->insert_into .= $field." ";
$this->values .= "'$val' ";
if($x //capture field names
$this->insert_into.=",";
$this->values .= ", ";
}
}
$x++;
}
$this->values .= ")";
$this->all_values[] = $this->values;
}
//create insert line of the sql
$this->insert_line = "REPLACE INTO $this->table ( $this->insert_into ) VALUESn ";
$this->output_sql = $this->insert_line;
$num=count($this->all_values)-1;
$x=0;
$i=1;
//loop through the list of VALUES "(bla,bla,bla)" in array adding each to sql
//when vals_per_insert is reached close sql statement and add another insert line
reset($this->all_values);
while(list($foo,$v)=each($this->all_values)){
//only add specified number of values per insert statement (vals_per_insert)
if($i== $this->vals_per_insert){
$this->output_sql .= $v.";nn".$this->insert_line;
$i=1;
}
else{
$this->output_sql .= " $v ";
if($x $this->output_sql .= ",n";
}
}
$x++;
$i++;
}
reset($this->all_values);
reset($this->mysql_array);
//finish the sql statement
$this->output_sql .= ";";
if($show){
echo "n##########################################################n";
echo "# SQL Created by Csv2MySQL.1.1.inc n";
echo "# CyBeRtIlL LeGaCy ImPoRtAtIoN ToOl n";
echo "# ".date("D d-m-Y H:i:s", time())."n";
echo "# CSV File: $this->csv_file n";
echo "##########################################################n";
echo "nn".$this->output_sql."n";
}
else{
return($this->output_sql);
}
}
var $keys;
//just a little debugging function
function show_definitions($tbl=1, $return=0){
if(!$tbl){
ds($this->mysql_array);
#BELOW ARE JUST SOME MORE OPTIONAL DUMPS FOR DEBUGGING
//ds($this->csv_fields);
//ds($this->csv_data_all);
//ds($this->tbl_structure);
//ds($this->instructions);
//echo nl2br($this->output_sql);
}else{
if(!$return){
#DEBUG JARGON - "FOR THOSE THAT KNOW" ;)
echo "
";<br> $d=new display($this->csv_data_all);<br> $d->make_layout(1);<br> $d=new display($this->mysql_array);<br> $d->make_layout(1);<p> #OPTIONAL DEBUG DUMPS<br> //$d=new display($this->instructions);<br> //$d->make_layout(1);<br> //$d=new display($this->instruct_functions);<br> //$d->make_layout(1);<br> //$d=new display($this->tbl_structure);<br> //$d->make_layout(1);<br> //echo nl2br($this->output_sql);<br> echo "</p>
}else{
#RETURN DATA TO FUNCTION CALLER...
//get the array keys
$keys = array_keys($this->mysql_array[0]);
$this->keys = $keys;
//go through keys - grab 5 rows from big array - this is to display
//to the user what they are doing while adding functions etc. - without
//taking up potentially 1000's of lines...
foreach($keys as $key){
$x=0;
while($x $sample[$x][$key] = $this->mysql_array[$x][$key];
$x++;
}
}
$d=new display($sample);
$string = $d->make_layout(0);
return("
".$string."
}
}
}
function return_csv_fields(){
return($this->csvFields);
}
function return_mysql_fields(){
return($this->mysqlFields);
}
function return_mysql_key_fields(){
//return(array_keys($this->mysql_array[0]));
return($this->keys);
}
}
?>
htmltablecreation.inc 0100400 0177776 0177776 00000013216 07561045034 015071 0 ustar nobody nogroup
//////// sample array to pass to class //////////
/*
$stuff = array("0" => array(
"product_id" => "00001",
"actual_unit_cost" => "99.99",
"retail_unit_cost" => "124.99",
"quantity" => "5"
),
"1" => array(
"product_id" => "00002",
"actual_unit_cost" => "699.99",
"retail_unit_cost" => "750.00",
"quantity" => "3"
)
);
*/
class display {
var $widths = array();
var $biggest = array();
var $data = array();
var $dis;
var $divider;
var $rows;
var $emptyset=FALSE;
var $write; //echo the output
var $ascii_output;
var $finalhtmltable;
var $stylesheet;
var $borderwidth = 0;
var $bordercolor = "#000000";
var $cellpadding = 2;
var $cellspacing = 1;
function calculate_widths($array){
if(empty($array)){
//check that there is some data to display
$this->emptyset=TRUE;
return(false);
}
//loop through each row
$this->data = $array;
$x=0;
if(is_array($array)){
foreach($array as $a){
while(list($key, $val) = each($a)){
$this->widths[$x][$key] = strlen($val);
}
++$x;
}
}
$this->biggest = $this->get_longest_only();
return($this->widths);
}
function get_longest_only(){
$x=0;
$array = $this->widths;
foreach($array as $a){
while(list($key, $val) = each($a)){
if($val > $this->biggest[$key] || empty($this->biggest[$key])){
$this->biggest[$key] = $val;
}
if(strlen($key) > $this->biggest[$key]){
$this->biggest[$key] = strlen($key);
}
}
++$x;
}
return($this->biggest);
}
function make_layout($write=1){
$this->write = $write;
if($this->emptyset){
return("Empty set (0.00 hehehe)n");
}
$first="+";
while(list($key, $val) = each($this->biggest)){
$dis.="+";
for($x=0;$xbiggest[$key];$x++){
$first .= "-";
}
$first.="+";
$s="|".ucwords(str_replace("_", " ",$key));
if(strlen($s)biggest[$key]){
for($x=strlen($s);$xbiggest[$key];$x++){
$s.=" ";
}
}
$second.=$s;
}
$this->divider = $first;
$re = $first."n".$second."|n".$first."n";
$re.=$rows;
$this->rows = $this->make_body();
$re.=$this->rows;
if($this->write){
//write the output to the webpage
//echo "
".$re."
echo "".$re."";
}
$this->ascii_out = $re;
return($re);
}
function create_stylesheet($bg="ededed", $fontcol="000000", $fontsize="x-small", $bg2="444444", $fontcol2="ffffff", $fontsize2="x-small"){
$this->stylesheet = "
";
}
function make_body(){
if(is_array($this->data)){
foreach($this->data as $row){
while(list($key, $val)=each($row)){
if(is_array($val)){
$out[0]=$val;
$tr = new display($out);
$tr->make_layout(0);
$tr->set_borderwidth($this->borderwidth);
$tr->set_cellpadding($this->cellpadding);
$tr->set_cellspacing($this->cellspacing);
$tr->set_bordercolor($this->bordercolor);
$val = "
".$tr->make_html_table()." |
}
$r .= "|".$val;
if(strlen($val)biggest[$key]){
for($x=strlen($val);$x biggest[$key]; $x++){
$r.=" ";
}
}
}
$r.="|n";
}
}
$r.=$this->divider."n";
return($r);
}
function get_divider(){
return($this->divider);
}
function display($stuff){
//constructor function
$this->widths = $this->calculate_widths($stuff);
}
function set_borderwidth($wid){
$this->borderwidth = $wid;
}
function set_cellpadding($pad){
$this->cellpadding=$pad;
}
function set_cellspacing($spac){
$this->cellspacing=$spac;
}
function set_bordercolor($col){
$this->bordercolor=$col;
}
function make_html_table(){
//converts ascii display into a proper html table
$text = $this->ascii_out;
$rows = explode("n", $text);
$x=0;
foreach($rows as $row){
$last = strlen($row);
$class = "column-data";
if($x==1){
$class = "table-header";
}
if(!ereg("^+-*", $row) && strlen($row)>0){
$row = "
$row .= "
$row = str_replace("+", "
$row = str_replace("|", "
$row = str_replace("
$row = str_replace("
$htmloutput.=$row;
}
$x++;
}
$style = $this->stylesheet;
$htmloutput = $style."n
$this->finalhtmltable = $htmloutput;
return($htmloutput);
}
function returnhtml(){
return($this->finalhtmltable);
}
function parsehtml(){
echo $this->finalhtmltable;
}
}
//$t = new display($stuff);
//$t->make_layout(0);
//echo $t->make_html_table();
/*
$d = new display($stuff);
$d->make_layout(0);
$d->set_borderwidth(0);
$d->set_cellspacing(1);
$d->set_cellpadding(2);
$d->make_html_table();
$d->parsehtml();
*/
?>

Heiße KI -Werkzeuge

Undresser.AI Undress
KI-gestützte App zum Erstellen realistischer Aktfotos

AI Clothes Remover
Online-KI-Tool zum Entfernen von Kleidung aus Fotos.

Undress AI Tool
Ausziehbilder kostenlos

Clothoff.io
KI-Kleiderentferner

AI Hentai Generator
Erstellen Sie kostenlos Ai Hentai.

Heißer Artikel

Heiße Werkzeuge

Notepad++7.3.1
Einfach zu bedienender und kostenloser Code-Editor

SublimeText3 chinesische Version
Chinesische Version, sehr einfach zu bedienen

Senden Sie Studio 13.0.1
Leistungsstarke integrierte PHP-Entwicklungsumgebung

Dreamweaver CS6
Visuelle Webentwicklungstools

SublimeText3 Mac-Version
Codebearbeitungssoftware auf Gottesniveau (SublimeText3)

Heiße Themen



In der MySQL -Datenbank wird die Beziehung zwischen dem Benutzer und der Datenbank durch Berechtigungen und Tabellen definiert. Der Benutzer verfügt über einen Benutzernamen und ein Passwort, um auf die Datenbank zuzugreifen. Die Berechtigungen werden über den Zuschussbefehl erteilt, während die Tabelle durch den Befehl create table erstellt wird. Um eine Beziehung zwischen einem Benutzer und einer Datenbank herzustellen, müssen Sie eine Datenbank erstellen, einen Benutzer erstellen und dann Berechtigungen erfüllen.

Vereinfachung der Datenintegration: AmazonRDSMYSQL und Redshifts Null ETL-Integration Die effiziente Datenintegration steht im Mittelpunkt einer datengesteuerten Organisation. Herkömmliche ETL-Prozesse (Extrakt, Konvertierung, Last) sind komplex und zeitaufwändig, insbesondere bei der Integration von Datenbanken (wie AmazonRDSMysQL) in Data Warehouses (wie Rotverschiebung). AWS bietet jedoch keine ETL-Integrationslösungen, die diese Situation vollständig verändert haben und eine vereinfachte Lösung für die Datenmigration von RDSMysQL zu Rotverschiebung bietet. Dieser Artikel wird in die Integration von RDSMYSQL Null ETL mit RedShift eintauchen und erklärt, wie es funktioniert und welche Vorteile es Dateningenieuren und Entwicklern bringt.

MySQL ist für Anfänger geeignet, da es einfach zu installieren, leistungsfähig und einfach zu verwalten ist. 1. Einfache Installation und Konfiguration, geeignet für eine Vielzahl von Betriebssystemen. 2. Unterstützung grundlegender Vorgänge wie Erstellen von Datenbanken und Tabellen, Einfügen, Abfragen, Aktualisieren und Löschen von Daten. 3. Bereitstellung fortgeschrittener Funktionen wie Join Operations und Unterabfragen. 4. Die Leistung kann durch Indexierung, Abfrageoptimierung und Tabellenpartitionierung verbessert werden. 5. Backup-, Wiederherstellungs- und Sicherheitsmaßnahmen unterstützen, um die Datensicherheit und -konsistenz zu gewährleisten.

Ausfüllen des MySQL -Benutzernamens und des Kennworts: 1. Bestimmen Sie den Benutzernamen und das Passwort; 2. Verbinden Sie eine Verbindung zur Datenbank; 3. Verwenden Sie den Benutzernamen und das Passwort, um Abfragen und Befehle auszuführen.

1. Verwenden Sie den richtigen Index, um das Abrufen von Daten zu beschleunigen, indem die Menge der skanierten Datenmenge ausgewählt wird. Wenn Sie mehrmals eine Spalte einer Tabelle nachschlagen, erstellen Sie einen Index für diese Spalte. Wenn Sie oder Ihre App Daten aus mehreren Spalten gemäß den Kriterien benötigen, erstellen Sie einen zusammengesetzten Index 2. Vermeiden Sie aus. Auswählen * Nur die erforderlichen Spalten. Wenn Sie alle unerwünschten Spalten auswählen, konsumiert dies nur mehr Serverspeicher und veranlasst den Server bei hoher Last oder Frequenzzeiten, beispielsweise die Auswahl Ihrer Tabelle, wie beispielsweise die Spalten wie innovata und updated_at und Zeitsteuer und dann zu entfernen.

Navicat selbst speichert das Datenbankkennwort nicht und kann das verschlüsselte Passwort nur abrufen. Lösung: 1. Überprüfen Sie den Passwort -Manager. 2. Überprüfen Sie Navicats "Messnot Password" -Funktion; 3.. Setzen Sie das Datenbankkennwort zurück; 4. Kontaktieren Sie den Datenbankadministrator.

Zeigen Sie die MySQL -Datenbank mit dem folgenden Befehl an: Verbindung zum Server: MySQL -U -Benutzername -P -Kennwort ausführen STEILE -Datenbanken; Befehl zum Abrufen aller vorhandenen Datenbanken auswählen Datenbank: Verwenden Sie den Datenbanknamen. Tabelle Ansicht: Tabellen anzeigen; Tabellenstruktur anzeigen: Beschreiben Sie den Tabellennamen; Daten anzeigen: Wählen Sie * aus Tabellenname;

Kopieren und einfügen in MySQL die folgenden Schritte: Wählen Sie die Daten aus, kopieren Sie mit Strg C (Windows) oder CMD C (MAC). Klicken Sie mit der rechten Maustaste auf den Zielort, wählen Sie ein Einfügen oder verwenden Sie Strg V (Windows) oder CMD V (MAC). Die kopierten Daten werden in den Zielort eingefügt oder ersetzen vorhandene Daten (je nachdem, ob die Daten bereits am Zielort vorhanden sind).
