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<?php $array = [0, 1, 2]; while (each($array)) { var_dump(key($array)); } reset($array); echo "----\n"; foreach ($array as $elem) { var_dump(key($array)); } reset($array); echo "----\n"; $array2 = &$array; foreach ($array2 as $elem) { var_dump(key($array)); }
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
Fatal error: Uncaught Error: Call to undefined function each() in /in/36Ni5:3 Stack trace: #0 {main} thrown in /in/36Ni5 on line 3
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /in/36Ni5 on line 3 int(1) int(2) NULL ---- int(0) int(0) int(0) ---- int(0) int(0) int(0)
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.3.32 - 7.3.33
int(1) int(2) NULL ---- int(0) int(0) int(0) ---- int(0) int(0) int(0)
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
int(1) int(2) NULL ---- int(1) int(1) int(1) ---- int(1) int(2) NULL
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/36Ni5 on line 2
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 '[' in /in/36Ni5 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/36Ni5 on line 2
Process exited with code 255.
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