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<?php $input = array( array( 'tag_name' => 'google' ), array( 'tag_name' => 'technology' ) ); $array2 = [{"image": "https://lh4.ggpht.com/nGlPuZaZ6BbR23QfhSVNT_Sd_U45RnUECVGhx-cKIlo3D_Onofn-nWpV3sEYEQsczb7tC4JhggdGYyhAAQ4I=s0#w=130&h=60", "name": "Georgia Institute of Technology"}] echo implode(', ', array_map(function ($entry) { return $entry['tag_name']; }, $input));
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected '{', expecting ']' in /in/t4sBJ on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.3, 5.2.5 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/t4sBJ on line 11
Process exited with code 255.
Output for 5.2.4

Process exited with code 143.
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 '[' in /in/t4sBJ on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/t4sBJ on line 11
Process exited with code 255.
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