PHP笔记
来自Jack's Lab
（版本间的差异）
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| + | == 数据类型数组 == | ||
| + | |||
| + | https://www.php.net/manual/zh/language.types.array.php | ||
| + | |||
| + | <br> | ||
| + | |||
== XML == | == XML == | ||
| 第32行： | 第38行： | ||
'/Result:\s*[^0]{1}\s*row.*<table>.*?<tr>.+?<\/tr>[^<]*?<tr\s?>(.+?)<\/tr>/s' | '/Result:\s*[^0]{1}\s*row.*<table>.*?<tr>.+?<\/tr>[^<]*?<tr\s?>(.+?)<\/tr>/s' | ||
</pre> | </pre> | ||
| + | |||
| + | <br><br> | ||
| + | |||
| + | == Time == | ||
| + | |||
| + | <source lang=php> | ||
| + | <?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). | ||
| + | |||
| + | </source> | ||
| + | |||
<br><br> | <br><br> | ||
2021年10月3日 (日) 08:27的最后版本
目录 |
[编辑] 1 数据类型数组
https://www.php.net/manual/zh/language.types.array.php
[编辑] 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"; ?>
[编辑] 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'
[编辑] 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).
[编辑] 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
