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<?php $arr = array(4, 'a' => 1, 'b' => 2, 'c' => 3); next($arr); var_dump(current($arr)); $first = explode('', $arr); var_dump($first); var_dump(current($arr));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
int(1) Fatal error: Uncaught TypeError: explode(): Argument #2 ($string) must be of type string, array given in /in/AXEf0:8 Stack trace: #0 /in/AXEf0(8): explode('', Array) #1 {main} thrown in /in/AXEf0 on line 8
Process exited with code 255.
Output for 5.3.1 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 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
int(1) Warning: explode() expects parameter 2 to be string, array given in /in/AXEf0 on line 8 NULL int(1)
Output for 5.2.5 - 5.2.17, 5.3.0
int(1) Notice: Array to string conversion in /in/AXEf0 on line 8 Warning: explode(): Empty delimiter in /in/AXEf0 on line 8 bool(false) int(1)
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.4
int(1) Notice: Array to string conversion in /in/AXEf0 on line 8 Warning: explode(): Empty delimiter. in /in/AXEf0 on line 8 bool(false) int(1)
Output for 4.3.0 - 4.3.1
int(1) Notice: Array to string conversion in /in/AXEf0 on line 8 Warning: explode() [http://www.php.net/function.explode]: Empty delimiter. in /in/AXEf0 on line 8 bool(false) int(1)

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