https://www.machform.com/forums/ MachForm Community Forums Topic: Require a minimum number of characters in a field? en Mon, 04 May 2026 00:49:00 +0000 https://www.machform.com/forums/topic/require-a-minimum-number-of-characters-in-a-field#post-11627 Thu, 17 Mar 2011 22:09:38 +0000 Radices 11627@https://www.machform.com/forums/ <p>Thanks!! </p> https://www.machform.com/forums/topic/require-a-minimum-number-of-characters-in-a-field#post-11619 Thu, 17 Mar 2011 11:36:46 +0000 redityo 11619@https://www.machform.com/forums/ <p>You need to put the custom code on different line number for simple name field. Try to go around line 322 on post-functions.php. You will see these code :</p> <pre><code>$target_input[$element_name] = $user_input[$element_name];</code></pre> <p>then you can add this code, exactly above that line </p> <pre><code>if ($form_id == 22 &#38;&#38; $element_name == &#39;element_1_1&#39;) { $rules[$element_name][&#39;min&#39;] = 1; } if ($form_id == 22 &#38;&#38; $element_name_2 == &#39;element_1_2&#39;) { $rules[$element_name_2][&#39;min&#39;] = 7; }</code></pre> <p>that would make you need to put at least 1 character for first name and 7 characters for last name. </p> https://www.machform.com/forums/topic/require-a-minimum-number-of-characters-in-a-field#post-11614 Thu, 17 Mar 2011 01:57:55 +0000 Radices 11614@https://www.machform.com/forums/ <p>What is the proper syntax for the name field element where it is a multi element field...I've tried '_1' and it does not do anything (doesn't break the code but doesn't enforce the rule) </p> https://www.machform.com/forums/topic/require-a-minimum-number-of-characters-in-a-field#post-10910 Mon, 22 Nov 2010 23:05:03 +0000 willsffan 10910@https://www.machform.com/forums/ <p>Awesome! Thanks very much! </p> https://www.machform.com/forums/topic/require-a-minimum-number-of-characters-in-a-field#post-10899 Mon, 22 Nov 2010 08:18:47 +0000 redityo 10899@https://www.machform.com/forums/ <p>This can be done with small customization. If you want to insert this validation on single line text field type. You can edit "includes/post-functions.php" file and go to around line 191 for this code :</p> <pre><code>$rules[$element_name][&#39;max&#39;] = 255;</code></pre> <p>Then add these code bellow that line </p> <pre><code>if ($form_id == 22 &#38;&#38; $element_id == 1) { $rules[$element_name][&#39;min&#39;] = 5; }</code></pre> <p>In there I assume your form id is 22 and the single line text field element id is 1. You need to change those id with yours. </p> https://www.machform.com/forums/topic/require-a-minimum-number-of-characters-in-a-field#post-10894 Sat, 20 Nov 2010 13:50:21 +0000 willsffan 10894@https://www.machform.com/forums/ <p>Hi,</p> <p>Is it possible to require that a field contain a minimum number of characters?</p> <p>Thanks! </p>