再來 10 個有用的 PHP 程式碼

http://www.learncomputer.com/10-useful-php-code-snippets/

function getRemoteIPAddress() {
 $ip = $_SERVER['REMOTE_ADDR'];
 return $ip;
}

function getRealIPAddress() {
 if (!empty($_SERVER['HTTP_CLIENT_IP'])) { // 檢查共享網際網路的ip
 $ip = $_SERVER ['HTTP_CLIENT_IP'];
 } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { // 檢查ip 是否從代理傳遞
 $ip = $_SERVER['HTTP_X_FORWARD  $ip = $_SERVER['REMOTE_ADDR'];
 }

複製代碼

$query = "從mytable 選擇UNIX_TIMESTAMP(date_field) 為mydate，其中1=1";
$records = mysql_query($query) 或die(mysql_error()die(mysql_error) );
while($row = mysql_fetch_array($records)) {

複製代碼

function checkDateFormat($date) {
 // 符合日期的格式
 if (preg_match("/^([0-9]{4})) - ([0-9]{2})-([0-9]{2})$/", $date, $parts)) {
 // 檢查日期是否有效not
 if (checkdate( $parts[2], $parts[3], $parts[1])) {
 回傳true;
 } else {
 回傳false;
 }
 } else {
 return false;

複製

$to = "someone@oschina.net";
$subject = "您的主題在這裡";
$body = "您可以在此處使用您的郵件內文HTML 也如 粗體";
$headers = "來自: Yourn";
$headers .= "回覆至: info@yoursite.comrn" ;
$headers .= "返迴路徑: info@yoursite.comrn";
$headers .= "X-Mailer: PHPn";
$headers .= 'MIME-版本: 1.0' . " n";
$headers .= '內容類型：text/html;字元集=iso-8859-1' 。 "rn";

函數base64url_encode($plainText) {
 $base64 = base64_encode($plainText);
 $base64url = strtr($base64, '+/='
 $base64url = strtr($base64, '- _,');
 return $base64url;
}

function base64url_decode($plainText) {
 $base64url = strtr($plainText, '-_,', '+/= ');
 $base64 = base64_decode($base64url);

複製代碼

$json_data = array ('id'=>1,'name'=>"約翰",'國'=>'加拿大',"工作"=> ;array( "Google","Oracle"));
echo json_encode($json_data);

$json_string='{"id":1,"name":"John","country ":" Canada","work":["Google","Oracle"]} ';
$obj=json_decode($json_string);

//列印解析後的資料

複製程式碼

複製程式碼

$lines = file('http://www.oschina.net/home/about');
foreach ($lines as $line_num => $line) {
 // 循環遍歷每一行並新增行號
 echo "Line #{$line_num} : " . htmlspecialchars($line) 。 "n";
}

$now = date('Y-m-d-G');
$now = strftime("%Y-%m-%d-%H", strtotime("$現在-8小時"));