$regex = '/^http:\/\/([\w.]+)\/([\w]+)\/([\w]+)\.html$/i';
$str = 'http://www.youku.com/show_page/id_ABCDEFG.html';
$matches = array();
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
$regex = '#^http://([\w.]+)/([\w]+)/([\w]+)\.html$#i';
$str = 'http://www.youku.com/show_page/id_ABCDEFG.html';
$matches = array();
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
$regex = '/HELLO/';
$str = 'hello word';
$matches = array();
if(preg_match($regex, $str, $matches)){
echo 'No i:Valid Successful!',"\n";
}
if(preg_match($regex.'i', $str, $matches)){
echo 'YES i:Valid Successful!',"\n";
}
$regex = '/(?<=c)d(?=e)/';
/* d 前面紧跟c, d 后面紧跟e*/
$str = 'abcdefgk';
$matches = array();
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
$regex = '/(?<!c)d(?!e)/';
/* d 前面不紧跟c, d 后面不紧跟e*/
$str = 'abcdefgk';
$matches = array();
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
$regex = '/HE(?=L)LO/i';
$str = 'HELLO';
$matches = array();
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
$regex = '/HE(?=L)LLO/i';
$str = 'HELLO';
$matches = array();
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
$regex = '/^(Chuanshanjia)[\w\s!]+\1$/';
$str = 'Chuanshanjia thank Chuanshanjia';
$matches = array();
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
$regex = '/(?P<author>chuanshanjia)[\s]Is[\s](?P=author)/i';
$str = 'author:chuanshanjia Is chuanshanjia';
$matches = array();
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
<?php
$regex = '/heL*/i';
$str = 'heLLLLLLLLLLLLLLLL';
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
<?php
$regex = '/heL*?/i';
$str = 'heLLLLLLLLLLLLLLLL';
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
<?php
$regex = '/heL+?/i';
$str = 'heLLLLLLLLLLLLLLLL';
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
<?php
$regex = '/heL{3,10}?/i';
$str = 'heLLLLLLLLLLLLLLLL';
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
$regex = '/
^host=(?<!\.)([\d.]+)(?!\.) (?#主机地址)
\|
([\w!@#$%^&*()_+\-]+) (?#用户名)
\|
([\w!@#$%^&*()_+\-]+) (?#密码)
(?!\|)$/ix';
$str = 'host=192.168.10.221|root|123456';
$matches = array();
if(preg_match($regex, $str, $matches)){
var_dump($matches);
}
echo "\n";
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