https://www.machform.com/forums/ MachForm Community Forums Topic: Validate Zip Code Field en Tue, 05 May 2026 07:19:54 +0000 https://www.machform.com/forums/topic/validate-zip-code-field#post-6753 Wed, 29 Jul 2009 20:21:23 +0000 mindseye 6753@https://www.machform.com/forums/ <p>Thanks redityo. I appreciate your help. The form works great now. </p> https://www.machform.com/forums/topic/validate-zip-code-field#post-6750 Wed, 29 Jul 2009 15:03:05 +0000 redityo 6750@https://www.machform.com/forums/ <p>If you need to allow numeric value only for "ZIP" code, try to use this code instead :</p> <pre><code>if ((strlen(trim($target_input[$element_name_5])) &lt; 5 || !is_numeric($target_input[$element_name_5])) &#38;&#38; empty($error_elements[$element_id]) ) { $error_elements[$element_id] = &quot;Zip code must more than 5 Character&quot;; }</code></pre> <p>I think it's more simple to use "is_numeric" function </p> https://www.machform.com/forums/topic/validate-zip-code-field#post-6740 Tue, 28 Jul 2009 20:12:38 +0000 mindseye 6740@https://www.machform.com/forums/ <p>Now people are entering the state name for example "Florida" and since there are more than 5 characters the form is accepting this entry. </p> <p>I added this to the code || !preg_match("/^[0-9][\w]*$/i",$value[5])</p> <p>Would this work?</p> <p>if ($form_id == 4 || $form_id == 10) {<br /> if (strlen(trim($target_input[$element_name_5])) &lt; 5 &#38;&#38; empty($error_elements[$element_id]) || !preg_match("/^[0-9][\w]*$/i",$value[5]) ) {<br /> $error_elements[$element_id] = "Zip code must be more than 5 Characters";<br /> }<br /> } </p> https://www.machform.com/forums/topic/validate-zip-code-field#post-6687 Thu, 23 Jul 2009 21:17:35 +0000 mindseye 6687@https://www.machform.com/forums/ <p>Very nice. Thank you for your help. </p> https://www.machform.com/forums/topic/validate-zip-code-field#post-6685 Thu, 23 Jul 2009 19:24:19 +0000 redityo 6685@https://www.machform.com/forums/ <p>Hi,</p> <p>Try to edit "includes/post-functions.php" file and go around line 479 ~ 481, you'll see these code :</p> <pre><code>if($validation_result !== true){ $error_elements[$element_id] = $validation_result; }</code></pre> <p>then put these code exactly bellow that line </p> <pre><code>if ($form_id == 5) { if (strlen(trim($target_input[$element_name_5])) &lt; 5 &#38;&#38; empty($error_elements[$element_id]) ) { $error_elements[$element_id] = &quot;Zip code must more than 5 Character&quot;; } }</code></pre> <p>Those code will work on form id 5, make sure you change the form id with yours </p> https://www.machform.com/forums/topic/validate-zip-code-field#post-6676 Wed, 22 Jul 2009 23:23:13 +0000 mindseye 6676@https://www.machform.com/forums/ <p>I would like to validate the zipcode field in my forms to check for a minimum of 5 characters. Currently people are adding state abbreviations in the zipcode and not getting an error message. </p> <p>how can I specify the validation for that field only?</p> <p>Thanks. </p>