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<?php function make_uppercase(&$word) { $word = strtoupper ($word); return $word; } $fish = array ( "hampala ampalong", "hampala macrolipedota" ); print_r ( array_map ("make_uppercase", $fish) );
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Warning: make_uppercase(): Argument #1 ($word) must be passed by reference, value given in /in/G6nUs on line 12 Warning: make_uppercase(): Argument #1 ($word) must be passed by reference, value given in /in/G6nUs on line 12 Array ( [0] => HAMPALA AMPALONG [1] => HAMPALA MACROLIPEDOTA )
Output for 5.6.0 - 5.6.28, 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
Array ( [0] => HAMPALA AMPALONG [1] => HAMPALA MACROLIPEDOTA )
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112.79 ms | 1746 KiB | 4 Q