preg-match

问题 Here, is my html string in $data variable in php, and that string have some text like <140/90 mmHg OR <130/80 mmHg this line not showing when i run this code using PHP DOMDocument because when coming less-than & grater-than signs its problematic. <?php $data = 'THE CORRECT ANSWER IS C. <p>Choice A Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industrys standard dummy text ever since the 1500s</p> <p></p> <p>Choice B Lorem Ipsum is simply

问题 Ok, I want to create a "website mobilizer" by using PHP Simple HTML DOM Parser. In the present phase, I want to- change all 'ul' and 'li' tag to 'div' tag and change all 'table' elements (e.g. table,tr,td,th) to div. I tried an workaround for the first problem in following way: . $html=new new simple_html_dom(); $html>load_file($sourceurl); $div="div"; foreach ($html->find('ul') as $element) { $element=$div; } It does seem dull, but I'm not being able to find any other solution. I am

问题 My code below produces an error, unknown modified "|"... I'm trying to use it as the OR operator. What is the correct way to run this code without error? $p = "(\w+)|(\()|(\))|(\,)"; $s = "sum(blue,paper,green(yellow,4,toast)))"; preg_match($p,$s, $matches); print_r($matches); Edit Okay I changed it a bit... ~(\w+|\(|\)|,)~ Now... here's the problem: I need to take that string and split it into an array like this: array("sum","(","blue","paper","green","(" ... etc ); Can someone help me do

问题 I have read this and this, and this, and half a dozen other questions about preg_match on SO, and I still can't figure this one out. I went to use this code from a CodeReview question and got an error saying that there was a preg_match() no deliminator '/' found. Can someone help me fix it? The code in question is this statement: if (preg_match($regex, $user_agent)) { You can find it by going to the bottom of the new, edited version of the code in the question itself, and counting up approx

问题 My string is $text1 = 'A373R12345' I want to find last none digital number occurrence of this string. So I use this regular expression ^(.*)[^0-9]([^-]*) Then I got this result: 1.A373 2.12345 But my expected result is: 1.A373R (It has 'R') 2.12345 Another example is $text1 = 'A373R+12345' Then I got this result: 1.A373R 2.12345 But my expected result is: 1.A373R+ (It has '+') 2.12345 I want contain the last none digital number!! Please help !! thanks!! 回答1: $text1 = 'A373R12345'; preg_match(

问题 function isUserID($username) { if (preg_match('/^[a-z\d_]{2,20}$/i', $username)) { return true; } else { return false; } } Easy one.., i have this, can you explain what it checks for? I know it checks if the username have length between 2-20, what more? Thanks 回答1: It searches for text containing only alphanumeric and underscore characters, from 2 to 20 characters long. /^[a-z\d_]{2,20}$/i |||| | ||| ||| |||| | ||| ||i : case insensitive |||| | ||| |/ : end of regex |||| | ||| $ : end of text

问题 This question already has answers here : Reference - What does this error mean in PHP? (36 answers) Closed 28 days ago . <?php $a="https://sayat.me/chitmarike"; $html=file_get_contents("$a"); $headers = get_headers($a); preg_match('~id="bar" value="([^"]*)"~', $html, $img); $img1 = $img[1]; echo $img1; preg_match('/(?<=csam=).*?(?=;)/', $headers, $cook); $cook1 = $cook[1]; echo $cook1; ?> I want to extract the value of csam from the cookie header. This is what it looks like: Array ( [0] =>

问题 This question already has answers here : Reference - What does this error mean in PHP? (36 answers) Closed 28 days ago . <?php $a="https://sayat.me/chitmarike"; $html=file_get_contents("$a"); $headers = get_headers($a); preg_match('~id="bar" value="([^"]*)"~', $html, $img); $img1 = $img[1]; echo $img1; preg_match('/(?<=csam=).*?(?=;)/', $headers, $cook); $cook1 = $cook[1]; echo $cook1; ?> I want to extract the value of csam from the cookie header. This is what it looks like: Array ( [0] =>

问题 need a simply preg_match, which will find "c.aspx" (without quotes) in the content if it finds, it will return the whole url. As a example $content = '<div>[4]<a href="/m/c.aspx?mt=01_9310ba801f1255e02e411d8a7ed53ef95235165ee4fb0226f9644d439c11039f%7c8acc31aea5ad3998&n=783622212">New message</a><br/>'; now it should preg_match "c.aspx" from $content and will give a output as "/m/c.aspx?mt=01_9310ba801f1255e02e411d8a7ed53ef95235165ee4fb0226f9644d439c11039f%7c8acc31aea5ad3998&n=783622212" The

问题 need a simply preg_match, which will find "c.aspx" (without quotes) in the content if it finds, it will return the whole url. As a example $content = '<div>[4]<a href="/m/c.aspx?mt=01_9310ba801f1255e02e411d8a7ed53ef95235165ee4fb0226f9644d439c11039f%7c8acc31aea5ad3998&n=783622212">New message</a><br/>'; now it should preg_match "c.aspx" from $content and will give a output as "/m/c.aspx?mt=01_9310ba801f1255e02e411d8a7ed53ef95235165ee4fb0226f9644d439c11039f%7c8acc31aea5ad3998&n=783622212" The