PHP笔记
来自Jack's Lab
目录 |
1 数据类型数组
https://www.php.net/manual/zh/language.types.array.php
2 XML
<?php $xmldata = <<<XML <?xml version="1.0" encoding="utf-8" ?> <root> <gateway_id>1122</gateway_id> <data operation="report"> </data> </root> XML; $root = new SimpleXMLElement($xmldata); echo "Gateway ID: " . $root->gateway_id . "\n"; ?>
3 正则表达式
'/Result:\s*[^0]{1}\s*row.*<table>.*<tr>.+<\/tr>[^<]*<tr\s?>(.+)<\/tr>/s' -----> *, + 都是最大匹配
适当就好要用 *? 和 +?
'/Result:\s*[^0]{1}\s*row.*<table>.*?<tr>.+?<\/tr>[^<]*?<tr\s?>(.+?)<\/tr>/s'
4 Time
<?php date_default_timezone_set("UTC"); echo "UTC:".time(); echo "<br>"; date_default_timezone_set("Asia/Shanghai"); echo "Asia/Shanghai:".time(); echo "<br>"; ?> UTC:1526196418 Asia/Shanghai:1526196418 int time ( void ) // Returns the current time measured in the number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT). // The function time() returns always timestamp that is timezone independent (=UTC).
5 资源
- PHP Tutorial: http://www.tutorialspoint.com/php/index.htm
- PHP 在线执行: http://writecodeonline.com/php/
- PHP 参考手册: http://www.php.net/manual/zh/funcref.php