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run code in 300+ PHP versions simultaneously
<?php var_dump(fopen("test.php","w")); var_dump((array) false, (array) true, (array) 1, (array) 1.5, (array) "1", (array) DNS_A);
Output for 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: fopen(): open_basedir restriction in effect. File(test.php) is not within the allowed path(s): (/tmp:/in:/etc) in /in/ID8oe on line 2 Warning: fopen(test.php): Failed to open stream: Operation not permitted in /in/ID8oe on line 2 bool(false) array(1) { [0]=> bool(false) } array(1) { [0]=> bool(true) } array(1) { [0]=> int(1) } array(1) { [0]=> float(1.5) } array(1) { [0]=> string(1) "1" } array(1) { [0]=> int(1) }
Output for 8.0.13
Warning: fopen(test.php): Failed to open stream: Read-only file system in /in/ID8oe on line 2 bool(false) array(1) { [0]=> bool(false) } array(1) { [0]=> bool(true) } array(1) { [0]=> int(1) } array(1) { [0]=> float(1.5) } array(1) { [0]=> string(1) "1" } array(1) { [0]=> int(1) }
Output for 7.3.32 - 7.3.33, 7.4.33
Warning: fopen(test.php): failed to open stream: Read-only file system in /in/ID8oe on line 2 bool(false) array(1) { [0]=> bool(false) } array(1) { [0]=> bool(true) } array(1) { [0]=> int(1) } array(1) { [0]=> float(1.5) } array(1) { [0]=> string(1) "1" } array(1) { [0]=> int(1) }
Output for 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.32
Warning: fopen(): open_basedir restriction in effect. File(test.php) is not within the allowed path(s): (/tmp:/in:/etc) in /in/ID8oe on line 2 Warning: fopen(test.php): failed to open stream: Operation not permitted in /in/ID8oe on line 2 bool(false) array(1) { [0]=> bool(false) } array(1) { [0]=> bool(true) } array(1) { [0]=> int(1) } array(1) { [0]=> float(1.5) } array(1) { [0]=> string(1) "1" } array(1) { [0]=> int(1) }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Warning: fopen(test.php): failed to open stream: Permission denied in /in/ID8oe on line 2 bool(false) array(1) { [0]=> bool(false) } array(1) { [0]=> bool(true) } array(1) { [0]=> int(1) } array(1) { [0]=> float(1.5) } array(1) { [0]=> string(1) "1" } array(1) { [0]=> int(1) }
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Warning: fopen(test.php): failed to open stream: Permission denied in /in/ID8oe on line 2 bool(false) Notice: Use of undefined constant DNS_A - assumed 'DNS_A' in /in/ID8oe on line 3 array(1) { [0]=> bool(false) } array(1) { [0]=> bool(true) } array(1) { [0]=> int(1) } array(1) { [0]=> float(1.5) } array(1) { [0]=> string(1) "1" } array(1) { [0]=> string(5) "DNS_A" }
Output for 4.3.0 - 4.3.1
Warning: fopen(test.php) [http://www.php.net/function.fopen]: failed to create stream: Permission denied in /in/ID8oe on line 2 bool(false) Notice: Use of undefined constant DNS_A - assumed 'DNS_A' in /in/ID8oe on line 3 array(1) { [0]=> bool(false) } array(1) { [0]=> bool(true) } array(1) { [0]=> int(1) } array(1) { [0]=> float(1.5) } array(1) { [0]=> string(1) "1" } array(1) { [0]=> string(5) "DNS_A" }

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359.89 ms | 402 KiB | 451 Q