(PHP 4, PHP 5, PHP 7)
preg_quote — 转锟斤拷锟斤拷锟斤拷锟斤拷式锟街凤拷
$str
[, string $delimiter = NULL
] ) : string
preg_quote()锟斤拷要锟斤拷锟斤拷 str 锟斤拷锟斤拷锟斤拷锟斤拷
每锟斤拷锟斤拷锟斤拷锟斤拷式锟斤法锟叫碉拷锟街凤拷前锟斤拷锟斤拷一锟斤拷锟斤拷斜锟竭★拷 锟斤拷通锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一些锟斤拷锟斤拷时锟街凤拷锟斤拷
锟斤拷要锟斤拷为锟斤拷锟斤拷锟斤拷式锟斤拷锟斤拷匹锟斤拷锟绞憋拷锟�
锟斤拷锟斤拷锟斤拷式锟斤拷锟斤拷锟街凤拷锟叫ｏ拷 . \ + * ? [ ^ ] $ ( ) { } = ! < > | : -
注锟斤拷 / 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷式锟斤拷锟斤拷锟街凤拷锟斤拷
Note:
注锟解：preg_quote() 锟斤拷应锟矫筹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 preg_replace() 锟斤拷 $replacement 锟街凤拷锟斤拷锟斤拷锟斤拷锟斤拷
str锟斤拷锟斤拷锟街凤拷锟斤拷
delimiter
锟斤拷锟街革拷锟斤拷丝锟窖★拷锟斤拷锟� delimiter锟斤拷锟斤拷也锟结被转锟藉。锟斤拷通锟斤拷锟斤拷锟斤拷
转锟斤拷PCRE锟斤拷锟斤拷使锟矫的分革拷锟斤拷锟斤拷 / 锟斤拷锟筋常锟斤拷锟侥分革拷锟斤拷锟斤拷
锟斤拷锟斤拷转锟斤拷锟斤拷锟街凤拷锟斤拷锟斤拷
| 锟芥本 | 说锟斤拷 |
|---|---|
| 5.3.0 | 锟街凤拷 - 锟斤拷锟斤拷锟斤拷为锟斤拷要转锟斤拷摹锟� |
Example #1 preg_quote()示锟斤拷
<?php
$keywords = '$40 for a g3/400';
$keywords = preg_quote($keywords, '/');
echo $keywords; // 锟斤拷锟斤拷 \$40 for a g3\/400
?>
Example #2 锟斤拷锟侥憋拷锟叫的碉拷锟斤拷锟芥换为斜锟斤拷
<?php
//锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷校锟絧reg_quote($word) 锟斤拷锟节憋拷锟斤拷锟角猴拷原锟侥猴拷锟藉，使锟戒不使锟斤拷锟斤拷锟斤拷锟斤拷式锟叫碉拷锟斤拷锟斤拷锟斤拷锟藉。
$textbody = "This book is *very* difficult to find.";
$word = "*very*";
$textbody = preg_replace ("/" . preg_quote($word, '/') . "/",
"<i>" . $word . "</i>",
$textbody);
?>
Note: 锟剿猴拷锟斤拷锟缴帮拷全锟斤拷锟节讹拷锟斤拷锟狡讹拷锟斤拷