PHP IP函数
<?php
$start = ip2long('192.168.1.1');
$start = sprintf("%u", $start) ;
$end = ip2long('192.168.1.50');
$end = sprintf("%u", $end) ;
for ($start; $start<$end; $start++){
echo long2ip($start)."<br>";
}
?>
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<?php
//״ͼ
//http://www.codefans.net
//
function createImage($data,$twidth,$tspace,$height){
$dataName = array();
&nb ......
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 92160 bytes) in :\Inetpub\wwwroot04\test.php on line 8
Fatal error: Out of memory (allocated 259,260,416) (tried to allocate 16 bytes) in C:\Inetpub\wwwroot04\test.php on line 8
//ini_set('memory_limit', '-1');
$inde ......
define("DB_SERVER","127.0.0.1");
define("DB_PORT",3306);
define("DB_CATALOG","uab");
define("DB_USERID","root");
define("DB_PASSWORD","");
$dsn="mysql:host=".DB_SERVER.";port=".DB_PORT.";dbname=".DB_CATALOG;
self::$__PDO=new PDO($dsn, DB_USERID, DB_PASSWORD);
//support long connection
self:: ......
<?php
// 将数组转换成Json格式,中文需要进行URL编码处理
function Array2Json($array) {
arrayRecursive($array, 'urlencode', true);
$json = json_encode($array);
$json = urldecode($json);
// ext需要不带引号的bool类型
&n ......
excel这类文件其实就是特殊格式的文本文件(应该所有格式都是特殊格式的文本文件和二进制文件),
excel不同的行体现在文本中的换行,里面的需要转义的字符包括,\和\r\n这两个,遇到这些字符的时候这个单元格需要用""格开 ......