https://www.webmaster-forums.net/crss/node/1037613 en https://www.webmaster-forums.net/serverside-scripting/lots-logical-ors#comment-1215619 <p>in php you would do:</p> <p><div class="codeblock"><code>if(is_numeric($char)) {<br />&nbsp;&nbsp;&nbsp; echo(&quot;it&#039;s a number!&quot;);<br />}</code></div>'</p> Thu, 22 Feb 2007 12:32:00 +0000 andy206uk comment 1215619 at https://www.webmaster-forums.net https://www.webmaster-forums.net/serverside-scripting/lots-logical-ors#comment-1215577 <p>Two words: Regular expressions.</p> <p>The specifics would depend on what language you end up using. But you'll end up with something more like (this is pseudo-code):</p> <p><div class="codeblock"><code>if (char_entered =~ /[0-9]/)<br />{<br />&nbsp; puts{&quot;Looks like a number&quot;);<br />}</code></div>'</p> Wed, 21 Feb 2007 16:43:48 +0000 timjpriebe comment 1215577 at https://www.webmaster-forums.net