mb_regex_set_options() mb_split() 使用PERL兼容规则的函数有: preg_grep() preg_replace_callback() preg_match_all() preg_match() preg_quote() preg_split() preg_replace() 定界符: POSIX兼容正则没有定界符,函数的相应参数会被认为是正则。 PERL兼容正则可以使用任何不是字母、数字...
PCRE在php4.2.0中是默认启用的, 可以通过—without-pcre-regex禁用. 在php 5.3.0之后, 这个扩展不能被禁用. 但是仍然可以使用—with-pcre-regex=DIR来实用一个外部的pcre库进行编译 配置 pcre.backtrack_limit: 默认100000, pcre回溯限制 pcre.recursion_limit: 默认100000, pcre的递归限制. 需要注意的是, 如果...
preg_replace– perform a regular expression search and replace preg_replace_callback– perform a regular expression search and replace using a callback preg_split– split string by a regular expression The two most commonly used functions arepreg_matchandpreg_replace. Let’s begin by creating a ...
preg_replace_callback() Given an expression and a callback, returns a string where all matches of the expression are replaced with the substring returned by the callback preg_replace_callback_array() Given an array associating expressions with callbacks, returns a string where all matches of ea...
include php query-string regex <?php // 过滤QUERY_STRING $query_string = filter_input(INPUT_SERVER, 'QUERY_STRING', FILTER_SANITIZE_STRING); // 使用正则表达式过滤QUERY_STRING $query_string = preg_replace('/[^a-zA-Z0-9_\-\.\=\&\?\/]/', '', $query_string); // 输出过滤后的...
您可以简单地从字符串末尾的偏移量替换字符串的部分(-1 2-9表示数字,3表示空格、连字符和空格) So $string = 'My name is George 123123123'; $string = substr_replace($string, ' - ', -12, 3); echo $string; gives My name is Geor - 123123123...
__str_replace_first('foo','bar','foofoo') // 'barfoo' __str_replace_last('foo','bar','foofoo') // 'foobar' // search/replace with regex __str_search_replace( ' foo_1_bar_2_baz_3_gnarr_4_gnaz foo_5_bar_6_baz_7_gnarr_8_gnaz ...
; http://php.net/assert.callback ;assert.callback = 0 ; Eval the expression with current error_reporting(). Set to true if you want ; error_reporting(0) around the eval(). ; http://php.net/assert.quiet-eval ;assert.quiet_eval = 0 ...
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$section_text['FILE'] = preg_replace("/[\r\n]+$/", '', $section_text['FILEEOF']); unset($section_text['FILEEOF']); } foreach (array( 'FILE', 'EXPECT', 'EXPECTF', 'EXPECTREGEX' ) as $prefix) { $key = $prefix . '_EXTERNAL'; if (@count($section_text[$key]...