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<?php $info = array('q0'=>'coffee', 'q1'=>'brown', 'q2'=>'caffeine'); echo implode(",",$info); var_dump(explode(",",$info));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
coffee,brown,caffeine Fatal error: Uncaught TypeError: explode(): Argument #2 ($string) must be of type string, array given in /in/iKLc8:5 Stack trace: #0 /in/iKLc8(5): explode(',', Array) #1 {main} thrown in /in/iKLc8 on line 5
Process exited with code 255.
Output for 5.3.1 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
coffee,brown,caffeine Warning: explode() expects parameter 2 to be string, array given in /in/iKLc8 on line 5 NULL
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0
coffee,brown,caffeinearray(1) { [0]=> string(5) "Array" }

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