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<?php $input = array( array( 'tag_name' => 'google' ), array( 'tag_name' => 'technology' ) ); $letters = array(); foreach ($input as $value) { $letters = array_merge($letters, $value["tag_name"]); } echo implode(', ', $letters);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: array_merge(): Argument #2 must be of type array, string given in /in/AXZK6:13 Stack trace: #0 /in/AXZK6(13): array_merge(Array, 'google') #1 {main} thrown in /in/AXZK6 on line 13
Process exited with code 255.

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