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POPreg match and Preg replace specific format
 

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    <p>I need help with preg match/replace forma i really cant understand how its working and what each element doing.</p> <p>So far I have this:</p> <pre><code>$username = preg_replace('/\s+/', '_', $_POST['uname']); if(preg_match('/^[a-zA-Z0-9]{5,12}+$/u', $username)) { $username = trim(strip_tags(ucfirst($purifier-&gt;purify(@$_POST["uname"])))); } else { $message['uname']='wrong username input'; } </code></pre> <p>And for utf8(hebrew language) i got this:</p> <pre><code>if(preg_match("/^[\p{Hebrew} a-zA-Z0-9]{2,10}+$/u", $_POST['fname'])) { // } </code></pre> <p>which is working perfect, but I don't want to allow Hebrew on username just English.</p> <p>I tried to play with that in multiple combinations, I tried to change but no success, and I did research on StackOverflow and Google but can't make it like I want I don't understand. I used a RegEx site to and tried to build but with no success.</p> <p>So until now I got this :</p> <p>User can put 5-12 letters/numbers no special characters.</p> <p>What i want is :</p> <ul> <li>Can enter between 5-12 letters/numbers no special charcaters - i already have it.</li> <li>Allow whitespaces </li> <li><code>preg_match</code> if no mixed language's like E.G: $username = שדגדשsdsd; &lt;- not allowed mixed languages.</li> </ul> <p>And <code>preg_replace</code> to:</p> <ul> <li>Replace white spaces to nothing (remove white spaces) i have this but i dont know if it correct:</li> </ul> <p><code>$username = preg_replace('/\s+/', '', $_POST['uname']);</code></p> <p>Also, I am using UTF-8 language .</p> <p><strong>EDIT:</strong></p> <p>With help of hwnd , i make it to work like i want the latest code:</p> <pre><code> if(preg_match('/^[\p{Hebrew}]{2,10}|[a-zA-Z]{2,10}$/u', $_POST['fname']) &amp;&amp; preg_match('/^[a-zA-Z]{2,10}|[\p{Hebrew}]{2,10}$/u', $_POST['fname'])) { $message = 'valid'; }else{ $message = 'Invalid'; } </code></pre> <p><strong>Solved</strong>,Thanks.</p>
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