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<?php function test_isset($str) { $xml = '<field Default="' . $str . '"/>'; $field = new SimpleXmlElement($xml); var_dump(isset($field)); var_dump(isset($field['Default'])); var_dump(isset($field['XXX'])); } test_isset(""); test_isset("No"); test_isset("Yes"); test_isset("NULL"); test_isset("0"); test_isset("1"); test_isset("20");
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 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
bool(true) bool(true) bool(false) bool(true) bool(true) bool(false) bool(true) bool(true) bool(false) bool(true) bool(true) bool(false) bool(true) bool(true) bool(false) bool(true) bool(true) bool(false) bool(true) bool(true) bool(false)
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: simplexmlelement in /in/7M075 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: simplexmlelement in /in/7M075 on line 4

preferences:
270.2 ms | 401 KiB | 425 Q