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이 문서에서는 PHP 중국어 웹사이트 매뉴얼 풀어 주다
(PHP 4 >= 4.3.0, PHP 5)
pg_convert — 将关联的数组值转换为适合 SQL 语句的格式。
$connection
, string $table_name
, array $assoc_array
[, int $options
= 0
] ) pg_convert() 检查 assoc_array
中的值并将其转换为为适用于 SQL 语句的值。 pg_convert()
的前提条件是现有的表 table_name
中具有的列至少有 assoc_array
中的单元那么多。table_name
中的字段名以及字段值必须和 assoc_array
中的键名及值匹配。如果成功则返回一个包括转换后的值的数组,否则返回 FALSE
。
Note:
If there are boolean fields in
table_name
don't use the constantTRUE
inassoc_array
. It will be converted to the string 'TRUE' which is no valid entry for boolean fields in PostgreSQL. Use one of t, true, 1, y, yes instead.
此函数是实验性的。此函数的表象,包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担 。
connection
PostgreSQL database connection resource.
table_name
Name of the table against which to convert types.
assoc_array
Data to be converted.
options
Any number of PGSQL_CONV_IGNORE_DEFAULT
,
PGSQL_CONV_FORCE_NULL
or
PGSQL_CONV_IGNORE_NOT_NULL
, combined.
An array of converted values, or FALSE
on error.
Example #1 pg_convert() example
<?php
$dbconn = pg_connect ( 'dbname=foo' );
$tmp = array(
'author' => 'Joe Thackery' ,
'year' => 2005 ,
'title' => 'My Life, by Joe Thackery'
);
$vals = pg_convert ( $dbconn , 'authors' , $tmp );
?>
[#1] gorhas at gmail dot com [2014-10-07 20:41:50]
There is a problem when using interval.
If in the array
"time_pause" => '00:30:00'
and time_pause is an interval
the insert fails
pg_insert(): '00:30:00' does not match with '^(@?[ \t]+)?((([-+]?[ \t]+)?[0-9]+(\.[0-9]*)?[ ...
[#2] Andrew Falanga [2005-02-24 12:03:00]
Why does this function, pg_convert(), reject the string 'TRUE' as a valid value for the boolean types? I'm using PHP 4.3.9 and my web page originally set the value for submission to update, to 'TRUE'. pg_convert() threw it back to me saying that it's not a valid value for boolean types. However, the postgresql website says otherwise. See http://www.postgresql.org/docs/7.4/static/datatype-boolean.html for the context of my question/comment.
[#3] [2004-03-31 08:02:34]
The only options that I see are:
PGSQL_CONV_IGNORE_DEFAULT - Do not use DEAFULT value by removing field from returned array
PGSQL_CONV_FORCE_NULL - Convert to NULL if string is null string
PGSQL_CONV_IGNORE_NOT_NULL - Ignore NOT NULL constraints
These are constants, so don't quote them or anything.
[#4] dharana at dharana dot net [2003-05-12 06:28:45]
I've found "options" possible values:
PG_CONV_CHECK - check only
PG_CONV_STRICT - raise warning for non fatal error
PG_CONV_QUOTE - add quote around values for vchar, text datetime.
PG_CONV_SLASH - add slashes if it needed.
PG_CONV_NULLCHK - check values are defined for NOT NULL fields.
PG_CONV_NO_DEFAULT - ignore default value even if value is empty string.