preg-match

问题 I am trying to validate a string against the following regular expression which has been imposed upon me: [-,.:; 0-9A-Z&@$£¥€'"«»‘’“”?!/\\()\[\]{}<>]{3}[-,.:; 0-9A-Z&@$£¥€'"«»‘’“”?!/\\()\[\]{}<>*=#%+]{0,157} Can anybody help with writing a preg_match in PHP to validate an input string against this? I am struggling because: my knowledge of regex isn't that great in the first place I see special characters in the regex itself which I feel sure PHP won't be happy about me inserting directly into

问题 This question already has answers here : PHP regular expressions: No ending delimiter '^' found in (3 answers) Closed 5 years ago . I am using preg_match function in my program. The code is like this if (!$this->config_allow_src_above_docroot && !preg_match('^'.preg_quote(str_replace(DIRECTORY_SEPARATOR, '/', realpath($this->config_document_root))), $AbsoluteFilename)) But run the application it shows the warning like this Warning: preg_match() [function.preg-match]: No ending delimiter '^'

问题 I'm trying to match src="URL" tags like the following: src="http://3.bp.blogspot.com/-ulEY6FtwbtU/Twye18FlT4I/AAAAAAAAAEE/CHuAAgfQU2Q/s320/DSC_0045.JPG" Basically, anything that has somre sort of bp.blogspot URL inside of the src attribute. I have the following, but it's only partially working: preg_match('/src=\"(.*)blogspot(.*)\"/', $content, $matches); 回答1: This one accepts all blogspot urls and allows escaped quotes: src="((?:[^"]|(?:(?<!\\)(?:\\\\)*\\"))+\bblogspot\.com/(?:[^"]|(?:(?<!\\

问题 Using php, what is the regex to match an exact string. Say we have the text: Hello, world. How are you today? Today is sunshine and snow wouldn't you know. How would I use regex to match the string?: sunshine and snow 回答1: Using preg_match: <?php // The "i" after the pattern delimiter indicates a case-insensitive search if (preg_match("/php/i", "PHP is the web scripting language of choice.")) { echo "A match was found."; } else { echo "A match was not found."; } ?> Using strpos: <?php

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I am trying to pull the latest 4 news items from this site here: http://www.wolverinegreen.com/sports/m-wrestl/spec-rel/utva-m-wrestl-spec-rel.html They have no rss feed, so I have been reading into using php preg_match function but the syntax is a little confusing and I am not sure exactly how to do it. Any

问题 my string is $str='insert into employees values(' I want to ignore everything between insert into and ( . I want to skip employees values how should I skip it in regex? input string: insert into employees values( nextval( 'public.scheduled_charges_id_seq' ),'shrenik', 555, NULL) required output: insert into employees values( nextval( 'public.scheduled_charges_id_seq' ),'XXX', XXX, NULL); I tried: ([0-9]|\'.*\') I want to replace the confidential values in strings Which started as insert into

问题 I am trying to insert a break after a name in a string. But, the name can have characters like é $string = 'Test string'; $name = 'Tést'; $replacement = '$0<br />$1'; return preg_replace("/^$name/i", $replacement, $string); I would like this to return: Test<br /> string Tést could also be something like: Héllo, byé or nùl This should be possible right? Thanks in advance 回答1: I use something like this to collate accents: $collate = [ "À-Æ" => "A", "à-æ" => "a", "Ç" => "C", "ç" => "c", "È-Ë" =>

问题 If I have texts containing: <h1> Test </h1> <some html elements> <a href="www.example.com/test?abc=xxxx&def=yyyy&ghi=zzzzz"></a> <more html elements> How to preg_match by matching a word having "abc=xxxx" so I get: www.example.com/test?abc=xxxx&def=yyyy&ghi=zzzzz 回答1: As you search for the URL something here, it's worth to make clear what makes it different from it's context. A URL in general does not contain whitespace and often it's enclosed in some kind of quoting or parenthesis that makes

问题 I want to check posted content against a pattern. I am having trouble setting up this preg_match (or array?). The pattern being... TEXTHERE:TEXTHERE TEST:TEST FILE:FILE AND TEXTHERE:TEXTHERE TEST:TEST FILE:FILE I want to check for either pattern, the one with the whitespace and the one with the line break. If the posted content is this... (with extra line breaks and/or whitespace) TEXTHERE:TEXTHERE TEST:TEST FILE:FILE I want it to somehow display as... TEXTHERE:TEXTHERE TEST:TEST FILE:FILE

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: preg_match() Unknown modifier '[' help I am trying to match this pattern $regex_pattern = '<td id="(\w+)" class="(\w+)">(\w+).com<\/td>'; preg_match_all($regex_pattern, $result, $matches); print_r($matches); But I am getting this error: Warning: preg_match_all(): Unknown modifier '(' in What's wrong in my regex pattern? 回答1: Add delimiters to your pattern When using the PCRE functions, it is required that the