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run code in 300+ PHP versions simultaneously

@ 2014-08-07T12:52:40Z

<?php

$form_validation_rules = array(
            array('field' => 'email',       'label' => 'E-Mail-Adresse',    'rules' => 'trim|is_unique[bdb_users.email]|valid_email|required|xss_clean'),
            array('field' => 'first_name',  'label' => 'Vorname',           'rules' => 'trim|required|xss_clean'),
            array('field' => 'last_name',   'label' => 'Nachname',          'rules' => 'trim|required|xss_clean'),
            array('field' => 'tel',         'label' => 'Telefon',           'rules' => 'trim|required|xss_clean'),
            array('field' => 'address',     'label' => 'Adresse',           'rules' => 'trim|required|xss_clean'),
            array('field' => 'company',     'label' => 'Unternehmen',       'rules' => 'trim|required|xss_clean'),
            array('field' => 'password',    'label' => 'Passwort',          'rules' => 'trim|required|xss_clean'),
            array('field' => 'position',    'label' => 'Position',          'rules' => 'trim|xss_clean'),
            array('field' => 'department',  'label' => 'Abteilung',         'rules' => 'trim|xss_clean'),
            array('field' => 'credits',     'label' => 'Credits',           'rules' => 'trim|required|xss_clean|integer'),
        );

$x = array_map(function($element){return $element['field'];}, $form_validation_rules);

var_dump($x);

Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: array(10) { [0]=> string(5) "email" [1]=> string(10) "first_name" [2]=> string(9) "last_name" [3]=> string(3) "tel" [4]=> string(7) "address" [5]=> string(7) "company" [6]=> string(8) "password" [7]=> string(8) "position" [8]=> string(10) "department" [9]=> string(7) "credits" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/sZVfi on line 16
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/sZVfi on line 16
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `')'' in /in/sZVfi on line 16
Process exited with code 255.

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