[WordPress / Trust Form] Set the default value from $_GET

trust-form-tpl-.php

<?php
function trust_form_show_input() {
	global $trust_form;
	
	$col_name = $trust_form->get_col_name();
	$validate = $trust_form->get_validate();
	$config = $trust_form->get_config();
	$attention = $trust_form->get_attention();
	
	// set default value
	foreach ( $col_name as $key => $value ) {
		if ($value == 'イベント名') {
			$_POST[$key] = esc_attr($_GET['event_name']);
		}
	}

//...