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<?php ini_set('default_charset', 'UTF-8'); $string = '𝌆'; echo 'filter_var: ' . filter_var($string, FILTER_SANITIZE_FULL_SPECIAL_CHARS) . PHP_EOL; echo 'htmlspecialchars: ' . htmlspecialchars($string, ENT_QUOTES);
Output for 5.3.3 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.23, 7.4.0 - 7.4.12, 8.0.0alpha1 - rc2
filter_var: 𝌆 htmlspecialchars: 𝌆
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.2
Notice: Use of undefined constant FILTER_SANITIZE_FULL_SPECIAL_CHARS - assumed 'FILTER_SANITIZE_FULL_SPECIAL_CHARS' in /in/uQ1C5 on line 7 Warning: filter_var() expects parameter 2 to be long, string given in /in/uQ1C5 on line 7 filter_var: htmlspecialchars: 𝌆
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Call to undefined function filter_var() in /in/uQ1C5 on line 7
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: filter_var() in /in/uQ1C5 on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: filter_var() in /in/uQ1C5 on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: filter_var() in /in/uQ1C5 on line 7