问题内容: I have this string 'My String' with square brackets eg [My String]. At the moment I can only get the string like: $re = '/'([^']+)'/'; $str = "'My String'"; preg_match($re, $str, $matches); How can I get replace the qoutes using preg_replace() 问题评论:      Why not use preg_replace in the first place? Also, you

问题内容: I’m thinking to do two regex for get $price and then 33fff50.00 in this string: Variable "$price" got invalid value "33fff50.00" both regex are preceded for ‘Variable’ and ‘value’ word: I’ve tried: \b[Variable ]"(.*)" but it’s not working 问题评论:      both regex are preceded for ‘Variable’ and ‘value’ word: And both are wrapped

问题内容: #!/bin/bash default_pwd="mysql_password" script_pwd="template!123" echo $default_pwd echo $script_pwd if [ $default_pwd == $script_pwd ] then echo "They match" else if [ `expr "$script_pwd" : ".*[!]{2}$.*"` -gt 0]; then echo "Contain consecutive !! special character" else echo "valid password" fi fi Expected Result: it should echo “consecutive !! special character” when script_pwd has !! 问题评论:   

问题内容: I am trying to read a string from a Text file, which is a date in format: 170929(Sep 29):- “yymmdd”, then convert it into datetime object, so that i can add/subtract days from it. For ex: Record A, a001, a002, a003, "170929", aoo4 Record B, b001, b002, "170929", b003, b004 My purpose is to

问题内容: I could extract m3u8 and wmsAuthSign of below link by regex before but now my code doesn’t work! what’s the problem ?! Link : https://www.liveonlinetv247.info/embed/btsport2.php This is my regex code : $streamSite = "https://www.liveonlinetv247.info/embed/btsport2.php"; function writeFile($url, $channel) { $File = $channel.".strm"; $Handle = fopen($File, 'w'); fwrite($Handle, $url); fclose($Handle); } $input = @file_get_contents($streamSite) or die("Please

问题内容: I have a few different strings that look like this: aaaa01b.site.com bbbb01ccc.site.com cccc02dd.site.com dd03eeee.site.com All I am interested in is the characters between the last numeric digit and the first full stop, ie b ccc dd eeee Is there a regular expression that can achieve this? 问题评论: 答案: 答案1: Try this pattern: .*\d+([^.]+)\. The

问题内容: What I’d like to do is match the first occurrence of two or more letters, so for example, I’d like to highlight A and F from the string below: "ASDFASDFASDFASDF" But only the first A and only the first F I’ve tried: /A{1}F{1}/i But no joy… Any ideas appreciated… 问题评论: 4   What is

问题内容: I’m looking for the reverse of regexp.QuoteMeta. Is it there a such function? I’ve tried to manually unescape it using strings.Replace("\", "", -1) but this is prone to error/unreliable as it doesn’t work in all the cases(i.e. on excessive escaping or unicode). I also tried to add some quotes and use strconv.Unquote (e.g. strconv.Unquote(“+

问题内容: Want to add a new line in a file using perl script. I have tried but no luck if($correctedContents[$i] ~= /second line/){ @data = $correctedContents[$i] push (@data, '\n TEST Line'); For example: add a “TEST Line” into a file whenever it find ‘second line’ line. file1.txt, first line second line third line first line

问题内容: The task is pretty clear. In the input we have a variable regex pattern, which supposedly contains named subpatterns, and in the output we need to get an array of subpattern names: function get_subpattern_names($any_input_pattern) { // What pattern to use here? $pattern_to_get_names = '/.../'; preg_match_all($pattern_to_get_names, $any_input_pattern, $matches); return $matches; } So the question is

问题内容: I want to search for all instances of ‘xyz’ in a Google spreadsheet and replace every ‘y’ with the cell reference and sheet name. Imagine I have this table in a sheet called ‘Monday’: A B 1 xyz 2 xyz I then want the text in A1 and B2 to be replaced so the

问题内容: This question already has an answer here: How do I return the response from an asynchronous call? 25 answers I am trying to get the view-source of a website and then doing a regex match. I am using jQuery. I was testing the script in Google developer console. It is returning this error Cannot