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<?php $input = array( array( '1' => '2', '2' => '3' ), array( '1' => '3', '2' => '2' ) ); echo implode(', ', array_map(function ($entry) { return $entry['tag_name']; }, $input));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: Undefined array key "tag_name" in /in/2kX32 on line 15 Warning: Undefined array key "tag_name" in /in/2kX32 on line 15 ,
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined index: tag_name in /in/2kX32 on line 15 Notice: Undefined index: tag_name in /in/2kX32 on line 15 ,
Output for 7.3.32 - 7.3.33
,
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/2kX32 on line 14
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/2kX32 on line 14
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/2kX32 on line 14
Process exited with code 255.

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