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How can I convert ereg expressions to preg in PHP?
Since POSIX regular expressions (ereg) are deprecated since PHP 5.3.0, I'd like to know an easy way to convert the old expressions to PCRE (Perl Compatible Regular Expressions) (preg) .
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Use PHP to create, edit and delete crontab jobs?
Is it possible to use PHP to create, edit and delete crontab jobs?
12 Answers
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Find out HTTP method in PHP [duplicate]
...e superglobals alternatives (Is using superglobals directly good or bad in PHP? and similar questions), one may instead use automatic sanitizing
filter_input( \INPUT_SERVER, 'REQUEST_METHOD', \FILTER_SANITIZE_SPECIAL_CHARS )
(you might of course use other filter, eg. FILTER_SANITIZE_STRING - see ...
PHP中的错误处理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
PHP中的错误处理程序只要在运行，就免不了会出现错误！或早或晚，只是时间问题罢了。错误很常见，比如Notice，Warning等等。此时一般使用set_error_handler...程序只要在运行，就免不了会出现错误！或早或晚，只是时间问题罢了。...
php each与list的用法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
php each与list的用法1.each的用法先看APIarrayeach ( array&$array)api里是这么描述的：each—返回数组中当前的键／值对并将数组指针向前移动一步我们先来看...1.each的用法
先看API：array each ( array &$array )
api里是这么描述的：each — 返回...
PHP的函数前加上“@”的作用 - PHP - 清泛IT论坛，有思想、有深度
@是PHP提供的错误信息屏蔽的专用符号。
比如在一个函数前使用@
@mysql_query 不会出现Warning，
而原来mysql_query 在遇到错误时会在页面上访提示Warning。
php安装gd库扩展（无需源码安装） - 更多技术 - 清泛网 - 专注C/C++及内核技术
php安装gd库扩展（无需源码安装）php_gd_installgd是php图片处理库，网上各种源码安装，非常复杂，其实很简单，无需源码编译。apt install php-gd重启apache生效：systemctl restart apache2gd是php图片处理库，网上各种源码安装，非常复杂，其...
What's the difference between isset() and array_key_exists()? [duplicate]
...t will return false when the array value is set to null.
See isset on the PHP documentation site.
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Import CSV to mysql table
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Here's a simple PHP command line script that will do what you need:
<?php
$host = 'localhost';
$user = 'root';
$pass = '';
$database = 'database';
$db = mysql_connect($host, $user, $pass);
mysql_query("use $database", $db);
/*********...
How do I get a PHP class constructor to call its parent's parent's constructor?
I need to have a class constructor in PHP call its parent's parent's (grandparent?) constructor without calling the parent constructor.
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