3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(-1); echo "ul_u"; define('UL_U', 'foo', true); define('ul_u', 'foo'); echo "\n"; echo "ul_l"; define('UL_L', 'foo'); define('ul_l', 'foo', true); echo "\n"; echo "\n"; echo "lu_l"; define('LU_L', 'foo', true); define('lu_l', 'foo'); echo "\n"; echo "lu_u"; define('LU_U', 'foo'); define('lu_u', 'foo', true);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
ul_u Warning: define(): Argument #3 ($case_insensitive) is ignored since declaration of case-insensitive constants is no longer supported in /in/dV3vp on line 5 ul_l Warning: define(): Argument #3 ($case_insensitive) is ignored since declaration of case-insensitive constants is no longer supported in /in/dV3vp on line 10 lu_l Warning: define(): Argument #3 ($case_insensitive) is ignored since declaration of case-insensitive constants is no longer supported in /in/dV3vp on line 14 lu_u Warning: define(): Argument #3 ($case_insensitive) is ignored since declaration of case-insensitive constants is no longer supported in /in/dV3vp on line 19
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
ul_u Deprecated: define(): Declaration of case-insensitive constants is deprecated in /in/dV3vp on line 5 Notice: Constant ul_u already defined in /in/dV3vp on line 6 ul_l Deprecated: define(): Declaration of case-insensitive constants is deprecated in /in/dV3vp on line 10 lu_l Deprecated: define(): Declaration of case-insensitive constants is deprecated in /in/dV3vp on line 14 Notice: Constant lu_l already defined in /in/dV3vp on line 15 lu_u Deprecated: define(): Declaration of case-insensitive constants is deprecated in /in/dV3vp on line 19
Output for 4.3.0 - 4.3.6, 4.3.9 - 4.3.11, 4.4.0 - 4.4.9, 5.0.1 - 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 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
ul_u Notice: Constant ul_u already defined in /in/dV3vp on line 6 ul_l lu_l Notice: Constant lu_l already defined in /in/dV3vp on line 15 lu_u
Output for 4.3.7 - 4.3.8, 5.0.0
ul_u Notice: Constant already defined in /in/dV3vp on line 6 ul_l lu_l Notice: Constant already defined in /in/dV3vp on line 15 lu_u
preferences:
310.33 ms | 402 KiB | 390 Q