It is important to not forget a leading an trailing forward slash in the regex: echo preg_replace('/[^A-Za-z0-9_]/', '', 'D"usseldorfer H"auptstrasse') Dusseldorfer Hauptstrasse PS An alternative is to use preg_replace('/\W/', '', $t) for keeping all alpha numeric charact...
if(preg_match($regex, $str, $matches)){ var_dump($matches); } echo"\n"; preg_match中的$matches[0]将包含与整个模式匹配的字符串。 使用"#"定界符的代码如下.这个时候对"/"就不转义! $regex ='#^http://([\w.]+)/([\w]+)/([\w]+)\.html$#i'; $str ='http://www.youku.com/...
All non-alphanumeric characters other than \, -, ^ (at the start) and the terminating ] are non-special in character classes, but it does no harm if they are escaped. Vertical bar Vertical bar characters are used to separate alternative patterns. For example, the patterngilbert|sullivanmatch...
Optional flag FILTER_FLAG_HOSTNAME adds ability to specifically validate hostnames (they must start with an alphanumeric character and contain only alphanumerics or hyphens). FILTER_VALIDATE_EMAIL "validate_email" default FILTER_FLAG_EMAIL_UNICODE, FILTER_NULL_ON_FAILURE Validates whether the ...
用“preg\u Replace”PHP替换一些特殊字符 我有一个PHP代码,它将连接到一个数据库,选择一个表,然后从中获取数据。在我的一个列(名为title)中,我有如下数据:Hello World - This/That is (Test),但我想将其转换为:hello-world-this-that-is-test,因为我想在我的页面的URL中使用这种文本。
MySQL - Preg Replace, Using preg_replace() Function in MySQL's match() against() Clause: A Guide could be rephrased as Guide to Incorporating preg_replace() Function within MySQL's match() against() Clause, Is it possible to use preg_replace or regex in
regexReplace(string $pattern, string $replacement, string $options, string $delimiter): static↑ Replaces all occurrences of $pattern in $str by $replacement.EXAMPLE: s('fòô ')->regexReplace('f[òô]+\s', 'bàř'); // 'bàř' s('fò')->regexReplace('(ò)', '\1ô');...
2 [[:digit:]] It matches any string containing numerical digits 0 through 9. 3 [[:alnum:]] It matches any string containing alphanumeric characters aA through zZ and 0 through 9. 4 [[:space:]] It matches any string containing a space.Advertisement...
As regexps are popular among us, there is another option that is compatible with interpunction (unlike theexplode(" ",...)method). $newString = preg_replace_callback("/[a-zA-Z]+/",'ucfirst_some',$string); function ucfirst_some($match) ...
Sanitize the value using preg_replace(). $filter->addSoftRule('field', $filter::IS, 'regex', $expr); strictEqualToField: Validate the value as strictly equal to the value of another field in the data object. Sanitize to the value of that other field. Usage: $filter->addSoftRule('...