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run code in 300+ PHP versions simultaneously
<?php $valid_numbers = '639164481688, 63-9164481688,639-164481688,6391-64481688,63916-4481688, 639164-481688,6391644-81688,63916448-1688,639164481-688, 6391644816-88,63916448168-8,639164481688,639164481688,+63-9164481688,+639-164481688,+6391-64481688,+63916-4481688, +639164-481688,+6391644-81688,+63916448-1688,+639164481-688, +6391644816-88,+63916448168-8,+639164481688 +639164481688,0-9164481688,09-164481688,091-64481688,0916-4481688, 09164-481688,091644-81688,0916448-1688,09164481-688, 091644816-88,0916448168-8,09164481688'; $valid_numbers = array_map(function($val) { return trim($val); }, explode(',', $valid_numbers)); print_r($valid_numbers);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [0] => 639164481688 [1] => 63-9164481688 [2] => 639-164481688 [3] => 6391-64481688 [4] => 63916-4481688 [5] => 639164-481688 [6] => 6391644-81688 [7] => 63916448-1688 [8] => 639164481-688 [9] => 6391644816-88 [10] => 63916448168-8 [11] => 639164481688 [12] => 639164481688 [13] => +63-9164481688 [14] => +639-164481688 [15] => +6391-64481688 [16] => +63916-4481688 [17] => +639164-481688 [18] => +6391644-81688 [19] => +63916448-1688 [20] => +639164481-688 [21] => +6391644816-88 [22] => +63916448168-8 [23] => +639164481688 +639164481688 [24] => 0-9164481688 [25] => 09-164481688 [26] => 091-64481688 [27] => 0916-4481688 [28] => 09164-481688 [29] => 091644-81688 [30] => 0916448-1688 [31] => 09164481-688 [32] => 091644816-88 [33] => 0916448168-8 [34] => 09164481688 )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/9LeVv on line 6
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 T_FUNCTION, expecting ')' in /in/9LeVv on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/9LeVv on line 6
Process exited with code 255.

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