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<?php function increment(&$var){ // call_user_func() not passed by reference ++$var; } $a = 0; call_user_func('increment', $a); echo $a; // output 1
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: increment(): Argument #1 ($var) must be passed by reference, value given in /in/ideSC on line 6 0
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: increment(): Argument #1 ($var) must be passed by reference, value given in /in/ideSC on line 6 0
Output for 5.6.0 - 5.6.24, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Parameter 1 to increment() expected to be a reference, value given in /in/ideSC on line 6 0
preferences:
196.49 ms | 402 KiB | 228 Q