本文实例讲述了PHP正则匹配反斜杠'\'和美元'$'的方法。分享给大家供大家参考,具体如下:
1. test.php:
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<?php
$content = '1111111<td>2222222<\/td>3$' ;
//'\\\\\/' 第1个'\'转义字符串的第2个'\',字符串为'\'
//第3个'\'转义第4个'\',相当于字符串'\'
//第5个'\'转义第4个'/',相当于字符串'/'
//字符合起来为'\\/' 两个'\\' 正则表达式看做'\'
$pattern = '/<td>([0-9]{7,})<\\\\\/td>\d\\$$/' ;
$result = preg_match_all( $pattern , $content , $match_result );
if ( $result )
print_r( $match_result );
else
echo ( "not match" );
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2. 方法二:
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$content = '1111111<td>2222222<\/td>3$' ;
$pattern = "!<td>(\d{7,})<\Q\/\Etd>\d\Q$\E!" ;
$result = preg_match_all( $pattern , $content , $m );
if ( $result )
print_r( $m );
else
echo ( "not match" );
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3. 运行结果:
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Array
(
[0] => Array
(
[0] => <td>2222222<\/td>3$
)
[1] => Array
(
[0] => 2222222
)
)
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希望本文所述对大家PHP程序设计有所帮助。