preg-match

问题 How to make one pattern string for preg_match_all() function If I have multiple strings to match like "G,C,D" & "A,B,C" & "E,C,D" Currently my string is $str = "/(?<=\b)([CDEFGAB](?:b|bb|m)*(?:#|##|sus|maj|min|aug)*[\d\/]*(?:[CDEFGAB](?:b|bb‌​|m)*(?:#|##|sus|maj|min|aug)*[\d\/]*)*)(?=\s|$|(<.*>))(?! \w)/" preg_match_all($str,$lyrics , $output_array); I want to add these combinations ("G,C,D" & "A,B,C" & "E,C,D") in $str string. 回答1: NOTE this answer has been dramatically edited over time to

问题 I'm want to match a domain (with preg_match) but I want to exclude a subdomain. Example I want to match all subdomains on example.org except boon.example.org : I've tried this: $test = "boon.example.org"; $test2 = "null"; if(preg_match('#(?!boon)(\w+\.)?example\.org#', $test, $output)) { $test2 = $output[2] .'example.org'; } But the output of test2 is: oon.example.org and not example.org Somebody has an answer? 回答1: If you're looking for only that exact subdomain, couldn't you just check if

问题 I'm trying to match everything from the last occurrence of either keyword (foo or bar) to the end of the string. Example (a): // I want to match ' foo do you?'; $source = 'This is foo and this is bar i like foo do you?'; $pattern = '/pattern/'; preg_match($pattern, $source, $matches); I tried the following: $pattern = '/( (foo|bar) .*)$/'; Thinking it would match the last occurrence of foo and all the following text, but it instead matches the first occurrence. print_r($matches); /* Array (

问题 I need to replace urls in the page taken by curl and add correct link to images and links. My php curl code is: <?php function getPage($url) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30); $result = curl_exec($ch); curl_close($ch); if (!preg_match('/src="https?:\/\/"/', $result)) $result = preg_replace('/src="(.*)"/', "src=\"http://support.prophpbb.com/\\1\

问题 Is there any way I can replace one value and retrieve another in the same string in a more efficient way than in the code below, for example a method that combines preg_replace() and preg_match() ? $string = 'abc123'; $variable = '123'; $newString = preg_replace("/(abc)($variable)/",'$1$2xyz', $string); preg_match("/(abc)($variable)/", $string, $matches); $number = $matches[2]; 回答1: You can use a single call to preg_replace_callback() and update the value of $number in the code of the

问题 This question already has answers here : Warning: preg_replace(): Unknown modifier ']' (3 answers) Closed 5 months ago . I have this HTML tags : <div class="title">Copy me if you can</div> so I wanna use preg_match to take just "Copy me if you can" I'm using this preg pattern : $preg = "<div class=\"title\">(.+?)</div>"; So I wrote this code $match = preg_match($preg,$content); The browser outputs : Warning: preg_match() [function.preg-match]: Unknown modifier '(' What 回答1: You forgot the

问题 I use "OR" operator "|" to match onle of the words of $name variable $name = "one five six two"; if (preg_match('/(one|two)/i', $name)) {return true;} What operator should I use with preg_match to have "AND" condition if that words is inside of $name? i.e. if (preg_match('/(two "AND" five)/i', $name)) {return true;} 回答1: If you still want to use regex, you'll need positive lookaheads: if (preg_match('/^(?=.*one)(?=.*two)/i', $name)) {return true;} It's not recommended for simple stuff (kind

问题 For example it works: {<div\s+class=\"article\"><h2(.*)</div>}s If I do this way, I get nothing: {<div\s+class=\"article\"> <h2(.*) </div>}s I suspect that I should use some modifier, but I know which one from here: http://php.net/manual/en/reference.pcre.pattern.modifiers.php 回答1: That would be the /x modifier: x (PCRE_EXTENDED) If this modifier is set, whitespace data characters in the pattern are totally ignored except when escaped or inside a character class, and characters between an

问题 Sorry, i spent like 2 hours trying to preg_match this form <form class="form-search" method="post" action="/index.php"> <div class="form-group"> <input id="address_box" type="text" class="form-control" name="x" value="" onfocus="this.select()" /> </div> <span class="btn btn-s btn-caps"><input type="submit" value="start" /></span> </form> To: Preg_match: START = <form WHERE action CONTAIN /index.php EX: action="/index.php" or action="http://whatever.com/index.php" FIND name="[A-Za-z]{1}" END =

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 5 years ago . preg_match ("/[-_^%&().A-Z0-9]/", $file) By the looks of it, I can see that the tail end is Anything A-Z and 0-9, but not sure for the beginning. Because ^ is not escaped so it could be a literal "^" or evaluated to a NOT, and same goes with ".", "(" and ")". So I am just a bit confused. Does