preg-match-all

问题 I have this string: 28.6MH\/s 27.3MH\/s | Temp(C): 64 66 61 64 63 | Fan: 74% 76% 69% 75% 72% | HW: 21 21 21 and I want to extract the Temp values, but I can't figure out what I'm doing wrong. The expression that I came up with (and doesn't work) is: ((?<temp>\d\d)(?!\.).+(?!Fan))+ Debuggex Demo 回答1: Pattern: /(?:\G(?!^)|Temp\(C\):) \K\d+/ (Demo) Code: (Demo) $in='28.6MH\/s 27.3MH\/s | Temp(C): 64 66 61 64 63 | Fan: 74% 76% 69% 75% 72% | HW: 21 21 21 '; var_export(preg_match_all('/(?:\G(?!^)

问题 I am using preg_match_all to build the array for shortcodes and it works fine but it also returns arrays with empty values see here please https://eval.in/141437 Using this match witch I am sure is casuing the extra empty arrays #\[link(.*?)link\=\"(.*?)\"(.*?)text\=\"(.*?)\"\]#e How can I clear those. I tried array_filter but it did not work. Thank you! 回答1: () represent a capture group and will be represented in the $matches array even if it is empty. Either get rid of the () around the

问题 Is there any way to get permutation of all words in a string using only regular expression in php. For example: for input like "How to remove pain in human knee" I want output as: "How To", "How","pain knee","remove knee","knee pain","in remove","human pain knee", etc. 回答1: Using regex will only serve to slow down the process. I have written a function based on the powerSet() function posted by Yada @ https://stackoverflow.com/a/27968556/2943403) Code: (Demo) function permStacker($array){

问题 How do I remove duplicates from a preg_match_all generated array? Current array Array ( Array ( 'font-family: "Comic Sans";', 'font-weight: bold;', 'font-weight: normal;', 'font-family: "Comic Sans";', 'font-weight: normal;' ) Array ( 'font-family', 'font-weight', 'font-weight', 'font-family', 'font-weight' ) Array ( '"Comic Sans"', 'bold', 'normal', '"Comic Sans"', 'normal' ) ) As you can see there are several duplicate values. The new array without the duplicate values should look like this

问题 I have an array ($x) containing 748 URL:s. Now, I want to fetch a specific part from each page and put all those parts into a new array. That is, an array containing 748 pieces of text, each from a different URL defined in array $x. Here's the code I've got so far: foreach ($x as $row) { $contents = file_get_contents($row); $regex = '/delimiter_start(.*?)delimiter_end/s'; preg_match_all($regex, $contents, $output); } If I var_dump $output I get a strange array that endlessly keeps looping

问题 hey, i have no idea what I'm doing wrong. I have a regexp pattern that looks for a youtube url inside or [track=url]. I'm returning a youtube embed-code if the regexp is matched. I need to have a unique ID for each video. I'm creating this ID with a simple count variable inside my preg_match_all foreach loop. The $uniqueID that I need for each video works just fine. If I have 3 [track=url] inside my $content I get 3 different id's echoed out (player_1, player_2, player_3, etc...) However ONLY

问题 I am trying to match urls in a string using the PHP function "preg_match_all". It works fine, except it will not match urls with question marks in them. For example, this will match fine: http://espn.com/mlb But this will not match: http://espn.com/mlb?player=71 Here is the regex I am using, $regexUrl = "/(http|https|ftp|ftps)\:\/\/[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?/"; I cannot figure out why the question mark is not being picked up by the \S. I've tried a lot of different expressions

问题 I have a problem, I would like to ask for this string: [NAME: abc] [EMAIL: email@gm.com] [TIMEFRAME: 3 weeks] [BUDGET: 1000 dollars] [MESSAGE: bla bla bla] Replace it with an array in the form: array( 'NAME' => 'abc', 'EMAIL' => 'email@gm.com', 'TIMEFRAME' => '3 weeks', 'BUDGET' => '1000 dollars', 'MESSAGE' => 'bla bla bla' ); I tried to do something like this: $content = str_replace(array('[', ']'), '', '[NAME: abc] [EMAIL: email@gm.com] [TIMEFRAME: 3 weeks] [BUDGET: 1000 dollars] [MESSAGE:

问题 I am using latest PHP. I want to parse HTML page to get data. HTML: <table class="margin15" style="margin-left: 0pt; margin-right: 0pt;" width="100%" align="left" border="0" cellpadding="0" cellspacing="0"> TRs, TDs, Data </table> <table class="margin15" style="margin-left: 0pt; margin-right: 0pt;" width="100%" align="left" border="0" cellpadding="0" cellspacing="0"> TRs, TDs, Data </table> <table class="margin15" style="margin-left: 0pt; margin-right: 0pt;" width="100%" align="left" border=

问题 I'm trying to retrieve all matches however I am only receiving one Here is my string $html = '<p> This is my Home Page.</p><p><span style="line-height: 1.42857;">{{ type="slider" }} </span></p><p> </p>'; If you see string contain {{ type="slider" }} , now if i write this string only once i am getting my expected result, but if i write it multiple times in html sting like {{ type="slider" }} {{ type="banned" }} {{ type="testimonial" }} $html = '<p> This is my Home Page.</p><p><span style="line