EN对于开发人员来说，正则表达式是一个非常有用的功能，它提供了 查找，匹配，替换 句子，单词，或者其他格式的字符串。这篇文章主要介绍了15个超实用的php正则表达式，需要的朋友可以参考下。在这篇文章里，我已经编写了15个超有用的正则表达式，WEB开发人员都应该将它收藏到自己的工具包。验证域名检验一个字符串是否是个有效域名.
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...
Delete($path);//This will delete images folder along with its contents.?> 2. 搜索和高亮字符串中的关键字 functionhighlighter_text($text,$words) {$split_words=explode( " " ,$words);foreach($split_wordsas$word) {$color= "#4285F4";$text=preg_replace("|($word)|Ui" , "$1" ,$text...
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...
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。
<?phpif (function_exists('mb_substr_replace') === false){ function mb_substr_replace($string, $replacement, $start, $length = null, $encoding = null) { if (extension_loaded('mbstring') === true) {$string_length = (is_null($encoding) === true) ? mb_strlen($string) : mb_...
regexp, with plural forms regexes, regexps, or regexen) are written in a formal language that can be interpreted by a regular expression processor";$text=preg_replace("/(regex)/i", '1',$text);echo$text; functionget_the_title(){return'Save the search...
"/<regex>/" up down 0 stringer at stringerstudios dot com ¶ 13 years ago Hey trucex. Cool phone number function but your $regex produces the following error. Warning: No ending delimiter '^' foundInstead of:$regex = '^[(]?[2-9]{1}[0-9]{2}[) -]{0,2}' . '[0-9...
are Arrays filled with // the captured data in the same order as in the regex pattern. // This prints an Array ("24", "13", "30") print_r($matches_out[1]); } Finding and replacing strings It is handy sometimes to find and replace a string using regular expressions, for ...
10 Validator::replacer('foo', function ($message, $attribute, $rule, $parameters) { 11 return str_replace(...); 12 }); 13}Implicit ExtensionsBy default, when an attribute being validated is not present or contains an empty value as defined by the required rule, normal validation rules,...