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<?php function modify_in_place_by_ref(&$prices) { $prices[0] = 100; } function modify_location_by_ref(&$prices) { $prices = [40, 50, 60]; } $prices = [1, 2, 3]; modify_in_place_by_ref($prices); if ($prices[0] == 100) { echo "Pass-by-reference!\n"; // Yep } else { echo "Pass-by-value!\n"; } $prices = [1, 2, 3]; modify_location($prices); if ($prices[0] == 40) { echo "Pass-by-reference!\n"; // Yep } else { echo "Pass-by-value!\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
Pass-by-reference! Fatal error: Uncaught Error: Call to undefined function modify_location() in /in/8tDef:19 Stack trace: #0 {main} thrown in /in/8tDef on line 19
Process exited with code 255.

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