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<?php echo 'null == false? ', (null == false) ? 'yes' : 'no', "\n"; echo 'null == 0? ', (null == 0) ? 'yes' : 'no', "\n"; echo 'null == "0"? ', (null == "0") ? 'yes' : 'no', "\n"; echo 'null == $undefined? ', (null == $undefined) ? 'yes' : 'no', "\n"; echo 'null == ""? ', (null == "") ? 'yes' : 'no', "\n"; echo 'false == 0? ', (false == 0) ? 'yes' : 'no', "\n"; echo 'false == "0"?', (false == "0") ? 'yes' : 'no', "\n"; echo 'false == $undefined? ', (false == $undefined) ? 'yes' : 'no', "\n"; echo 'false == ""? ', (false == "") ? 'yes' : 'no', "\n"; echo '0 == "0"? ', (0 == "0") ? 'yes' : 'no', "\n"; echo '0 == $undefined? ', (0 == $undefined) ? 'yes' : 'no', "\n"; echo '0 == ""? ', (0 == "") ? 'yes' : 'no', "\n"; echo '"0" == $undefined? ', ("0" == $undefined) ? 'yes' : 'no', "\n"; echo '"0" == ""? ', ("0" == "") ? 'yes' : 'no', "\n"; echo '$undefined == ""? ', ($undefined == "") ? 'yes' : 'no', "\n";
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
null == false? yes null == 0? yes null == "0"? no null == $undefined? Warning: Undefined variable $undefined in /in/SZhsg on line 6 yes null == ""? yes false == 0? yes false == "0"?yes false == $undefined? Warning: Undefined variable $undefined in /in/SZhsg on line 11 yes false == ""? yes 0 == "0"? yes 0 == $undefined? Warning: Undefined variable $undefined in /in/SZhsg on line 15 yes 0 == ""? no "0" == $undefined? Warning: Undefined variable $undefined in /in/SZhsg on line 18 no "0" == ""? no $undefined == ""? Warning: Undefined variable $undefined in /in/SZhsg on line 21 yes
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
null == false? yes null == 0? yes null == "0"? no null == $undefined? Notice: Undefined variable: undefined in /in/SZhsg on line 6 yes null == ""? yes false == 0? yes false == "0"?yes false == $undefined? Notice: Undefined variable: undefined in /in/SZhsg on line 11 yes false == ""? yes 0 == "0"? yes 0 == $undefined? Notice: Undefined variable: undefined in /in/SZhsg on line 15 yes 0 == ""? yes "0" == $undefined? Notice: Undefined variable: undefined in /in/SZhsg on line 18 no "0" == ""? no $undefined == ""? Notice: Undefined variable: undefined in /in/SZhsg on line 21 yes
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 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, 7.3.32 - 7.3.33, 7.4.26
null == false? yes null == 0? yes null == "0"? no null == $undefined? yes null == ""? yes false == 0? yes false == "0"?yes false == $undefined? yes false == ""? yes 0 == "0"? yes 0 == $undefined? yes 0 == ""? yes "0" == $undefined? no "0" == ""? no $undefined == ""? yes
preferences:
256.41 ms | 404 KiB | 346 Q