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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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
var1 = working , var2 = broken
preferences:
133.72 ms | 1972 KiB | 4 Q