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PHP - Preg Match For Special Chars
hey, i was wondering how i would make a preg match check for special characters, i would only like to allow an underscore _ and a dash -
i'm currently using preg_match("/[^0-9]+$/",$getUser) but thats not working right Similar TutorialsCode: [Select] <?php $fspec = base64_decode($_GET['q']); if (isset($_POST['content'])) { if (!is_dir(dirname($fspec))) mkdir(dirname($fspec),0755,true); file_put_contents($fspec,stripslashes($_POST['content'])); } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Edit template</title> <style type="text/css"> body { background-color:#fff; font-family:arial,verdana; font-size:10pt; } </style> </head> <body> <div style="background-color:#fff;"> <form action="<?php echo $_SERVER["PHP_SELF"].'?q='.base64_encode($fspec); ?>" method="post"> <div><textarea id="markItUp" rows="20" cols="80" name="content"><?php include $fspec; ?></textarea></div> <div> <input type="submit" value="Save" /> <a href="javascript:window.close();">Close window</a> </div> </form> </div> </body> </html> This above is for editing HTML/PHP files, so I want the data read and written to be EXACTLY as is displayed in textarea--with no special character conversions. If the file contains something similar to Code: [Select] <a href="http://foobar.com/index.php?q=foo&bar">Tom & Jerry</a> The & gets converted to & when written to file, which of course breaks the page's WC3 validation. Is it getting converted when passed via POST? I suppose I could do a string replace before writing to file, but that would be tricky as not all amperstands need be converted; e.g., the "Tom & Jerry" above. Am I missing something obvious? Thanks in advance. Hello everyone, how i can insert to the db string that include "$_GET['id']", and i need this as is. in the table i need to see the string $_GET['id'] and not the value. any ideas ? so I use file_get_contents to get the contents of a webpage, one of the lines has Code: [Select] <meta property="og:url" content="http://www.google.com/blahblahblah?s=5cd04d4a7632296b9cdb463d04e82c05" /> I want it to echo only http://www.google.com/blahblahblah so anything between <meta property="og:url" content=" and ?s=5cd04d4a7632296b9cdb463d04e82c05" /> I want to extract and put into a variable this works just fine but I was thinking preg match would be better $thread = explode('<meta property="og:url" content="', $psuc); $thread = explode('?s=', $thread[1]); echo $thread[0]; Thanks Hello, I am trying to crawl a website and get all the domain names listed on the site to output into my php script. I am using the following code.... The main area is the preg match area, since I know nothing about it, nor do I understand it a little bit! $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,"http://link I am getting data from.com); curl_setopt($ch, CURLOPT_TIMEOUT, 30); //timeout after 30 seconds curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); $result=curl_exec ($ch); curl_close ($ch); // Search The Results From The Starting Site if( $result ) { // LOOKING FOR ANYTHING.COM all .com's preg_match_all( "(.*)\.com", $result, $output, PREG_SET_ORDER ); foreach( $output as $item ) { // ALL LINKS DISPLAY HERE print_r($item); } } Any help would be greatly appreciated! I would like to allow special characters in my script like: ஆஇஊஎஐஓ But I don't want to allow HTML like: <b>bold</b> At first I was using htmlentities() when PRINTING OUT (NOT when or before inserting in the query) . Data shows up in MySQL as ᇋᇄᇝᇠᇤᇢᇦ And it was also printed out that way, I'd like to have it translated into it's actual form (ஆஇஊஎஐஓ), yet I don't want <b>bold</b> to be translated as well, I want it to stay <b>bold</b> Is there any way I can do this? I also tried htmlspecialchars() but that didn't do the trick either. If you need script examples let me know. EDIT: To bring it to the point, I want it to be just like in this forum post. The special chars are showing up, and the html is just being printed as <b></b>. Hi all I am trying to do an email validation check. Here's my code: if (!preg_match($email) == "^[a-z0-9]+([-_\.]?[a-z0-9])+@[a-z0-9]+([-_\.]?[a-z0-9])+\.[a-z]") { include("checkout-email-error.php"); exit; } It doesn't seem to allow any email addresses through? All help greatly appreciated! Thanks Pete Hello, I am trying to replace a url and add a sub-id to it, however I'm not quite there. Any help is always appreciated here. In the end, I would like the value of gotoUrl to have the cpId 123abc45 attached to it.
I.E.
http://example.com/?Aff=56732&SID=123abc45 http://example.com/?Aff=56732&uv=123abc45&product=1834234 http://example.com/?Aff=56732&cid=123abc45&ace=2gs244s3
$gotoUrl = "http://example.com/?Aff=56732&SID=";
// OR could be listed as such:
// $gotoUrl = "http://example.com/?Aff=56732&uv=default&product=1834234";
// $gotoUrl = "http://example.com/?Aff=56732&cid=&ace=2gs244s3";
// Will attach this to replace value
$cpId = "123abc45";
// Possible sid replacements, depending on the url
$sidList = array("sid","SID","cid","uv");
if ($gotoUrl){
foreach($sidList as $sidVar){
if (preg_match("/$sidVar/i", $gotoUrl)){
$gotoUrl = preg_replace("#{$sidVar}(?=.*\d)(?=.*[a-z])(?=.*[A-Z])$#", "{$sidVar}={$cpId}", $gotoUrl);
}
}
echo $gotoUrl;
}
Edited by iwpg, 13 August 2014 - 10:36 PM. How do I fix this For Each statement when used with preg match? //Cat_ID & Category Name preg_match_all('%<a[^href=]*href=\"\/cats\.asp\?cat_id=(.*?)\" title="(.*?)">%',$data,$matches1,PREG_SET_ORDER); // works fine preg_match_all('%/60/(.*?).jpg"%s',$data,$matches2,PREG_SET_ORDER); // works fine preg_match_all('%h3><p>(.*?)<\/p>%s',$data,$matches3,PREG_SET_ORDER); // works fine foreach ($matches1 as $val) { //need help here $subcat_id=$val[0][1]; $subcat=$val[0][2]; $cat_image=$val[1][1]; $cat_desc=$val[2][1]; Thanks for your help!!! This topic has been moved to PHP Regex. http://www.phpfreaks.com/forums/index.php?topic=331482.0 This topic has been moved to PHP Regex. http://www.phpfreaks.com/forums/index.php?topic=345772.0 This topic has been moved to PHP Regex. http://www.phpfreaks.com/forums/index.php?topic=326673.0 Hi all I'm quite a competent PHP coder but where it comes to preg_match I prefer to be ignorant, because I can't get my head around the patterns. Basically, I'm working with a script that someone else has written, and I'm coming across problems because the URL that is being validated sometimes has curly brackets '( )' in it (these are image file names generated by an internal system). I have the pattern, how do I modify this to allow curly brackets? On some occasions, the urls have just the opening or just the closing, so its never the complete set. if someone could give me an indication with this, because I'm clueless! Thanks in advance! Ste pattern: Code: [Select] $pattern = '/^(([\w]+:)?\/\/)?(([\d\w]|%[a-fA-f\d]{2,2})+(:([\d\w]|%[a-fA-f\d]{2,2})+)?@)?([\d\w][-\d\w]{0,253}[\d\w]\.)+[\w]{2,4}(:[\d]+)?(\/([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)*(\?(&?([-+_~.\d\w]|%[a-fA-f\d]{2,2})=?)*)?(#([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)?$/'; Please help me with this code. It keep appear in my website. "Warning: preg_match() [function.preg-match]: No ending delimiter '.' found in /home/kengsite/public_html/wp-content/plugins/statpress/statpress.php on line 1184" And this is how the line look like. if (!preg_match(".ico$", $urlRequested)) { return ''; } Hi All, I am trying to create a PHP code that will run a form, however i keep getting the error message Warning: preg_match() [function.preg-match]: No ending delimiter '^' found in D:\xampp\htdocs\HFCC\Scripts\mailprocess.php on line 55 Invalid email address entered. Go Back and try again attached is the complete copy of the code i am using, i have an email text box and label with the id 'email' also my method is POST and my action is Scripts/mailprocess.php. Please let me know if you need any additional details. Any help will be much appreciated. Thanks Hi, I want to separate out the file name from an image url. Not sure the best way to do it? I want to basically select all text after the last / slash. eg - image.jpg would be the result from http://www.google.com/images/image.jpg What's the best way to do it? Cheers Rob |
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