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<?php // Passing as reference $variable = "broken"; $callback = function() use( &$variable) { $variable = "working"; }; $callback(); // Not passing by reference $variable2 = "broken"; $callback2 = function() use( $variable2) { $variable2 = "working"; }; $callback2(); echo "var1 = $variable , var2 = $variable2";
Output for 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 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
var1 = working , var2 = broken
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 var1 = working , var2 = broken

preferences:
193.33 ms | 402 KiB | 298 Q