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<?php function make_uppercase(&$word) { $word = strtoupper ($word); return true; } $fish = array ( "hampala ampalong", "hampala macrolipedota" ); print_r ( array_filter ( $fish, "make_uppercase" ) );
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Warning: make_uppercase(): Argument #1 ($word) must be passed by reference, value given in /in/ac1ZT on line 12 Warning: make_uppercase(): Argument #1 ($word) must be passed by reference, value given in /in/ac1ZT on line 12 Array ( [0] => hampala ampalong [1] => hampala macrolipedota )
Output for 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
Array ( [0] => hampala ampalong [1] => hampala macrolipedota )
Output for 5.6.0 - 5.6.40
Array ( [0] => HAMPALA AMPALONG [1] => HAMPALA MACROLIPEDOTA )
preferences:
231.43 ms | 401 KiB | 292 Q