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<?php $hewan=array("a"=>"angsa","b"=>"bebek","c"=>"capung","d"=>"domba"); function proses(&$items,$key,$prefix){ $items="$item : $prefix"; } function tampil($item1,$key) { echo "$key.$item1 \n"; } array_walk($hewan,"tampil"); echo "after proses"; array_walk($hewan,"proses"); ?>
Output for 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 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
a.angsa b.bebek c.capung d.domba after proses Fatal error: Uncaught ArgumentCountError: Too few arguments to function proses(), 2 passed and exactly 3 expected in /in/GcY4k:4 Stack trace: #0 [internal function]: proses('angsa', 'a') #1 /in/GcY4k(15): array_walk(Array, 'proses') #2 {main} thrown in /in/GcY4k on line 4
Process exited with code 255.
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 a.angsa b.bebek c.capung d.domba after proses Fatal error: Uncaught ArgumentCountError: Too few arguments to function proses(), 2 passed and exactly 3 expected in /in/GcY4k:4 Stack trace: #0 [internal function]: proses('angsa', 'a') #1 /in/GcY4k(15): array_walk(Array, 'proses') #2 {main} thrown in /in/GcY4k on line 4
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
a.angsa b.bebek c.capung d.domba after proses Warning: Missing argument 3 for proses() in /in/GcY4k on line 4 Notice: Undefined variable: item in /in/GcY4k on line 5 Notice: Undefined variable: prefix in /in/GcY4k on line 5 Warning: Missing argument 3 for proses() in /in/GcY4k on line 4 Notice: Undefined variable: item in /in/GcY4k on line 5 Notice: Undefined variable: prefix in /in/GcY4k on line 5 Warning: Missing argument 3 for proses() in /in/GcY4k on line 4 Notice: Undefined variable: item in /in/GcY4k on line 5 Notice: Undefined variable: prefix in /in/GcY4k on line 5 Warning: Missing argument 3 for proses() in /in/GcY4k on line 4 Notice: Undefined variable: item in /in/GcY4k on line 5 Notice: Undefined variable: prefix in /in/GcY4k on line 5

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