3v4l.org

run code in 300+ PHP versions simultaneously
<?php ini_set('display_errors', 1); error_reporting(E_ALL); echo '#+++++++++++++++++++++++++++++++++++#' . PHP_EOL; echo '# Checking if a constant is defined #' . PHP_EOL; echo '# always retuns (bool)false in PHP. #' . PHP_EOL; echo '# Even if it has been defined! #' . PHP_EOL; echo '#+++++++++++++++++++++++++++++++++++#' . PHP_EOL; echo 'Testing on PHP version ' . PHP_VERSION . PHP_EOL . PHP_EOL; echo 'Result of `echo __FILE__`: ' . PHP_EOL; echo __FILE__; echo PHP_EOL . PHP_EOL; echo 'Okay, looks like __FILE__ is defined.' . PHP_EOL; echo 'Now let\'s see what `if ( defined(\'__FILE__\') )` returns:' . PHP_EOL; var_dump(defined('__FILE__'));

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.40.0060.00918.71
8.3.30.0070.01019.00
8.3.20.0040.00420.34
8.3.10.0040.00422.09
8.3.00.0030.00522.45
8.2.170.0170.00022.96
8.2.160.0100.01020.35
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0090.00626.16
8.2.120.0060.00319.24
8.2.110.0030.00622.08
8.2.100.0090.00319.12
8.2.90.0000.00719.06
8.2.80.0040.00417.97
8.2.70.0080.00017.25
8.2.60.0040.00417.80
8.2.50.0000.00818.07
8.2.40.0050.00317.91
8.2.30.0050.00217.86
8.2.20.0040.00417.63
8.2.10.0000.00819.40
8.2.00.0040.00417.43
8.1.270.0120.00322.18
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00823.93
8.1.230.0110.00019.01
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0100.00017.11
8.1.190.0080.00017.41
8.1.180.0090.00018.10
8.1.170.0040.00418.52
8.1.160.0040.00421.82
8.1.150.0040.00418.52
8.1.140.0000.00817.24
8.1.130.0030.00317.71
8.1.120.0040.00417.22
8.1.110.0000.00717.36
8.1.100.0040.00317.29
8.1.90.0000.00717.36
8.1.80.0050.00317.30
8.1.70.0030.00317.30
8.1.60.0030.00617.43
8.1.50.0030.00517.46
8.1.40.0050.00217.48
8.1.30.0030.00617.48
8.1.20.0040.00417.42
8.1.10.0050.00317.35
8.1.00.0040.00417.41
8.0.300.0050.00318.77
8.0.290.0040.00416.93
8.0.280.0000.00718.29
8.0.270.0000.00717.25
8.0.260.0000.00616.64
8.0.250.0030.00316.73
8.0.240.0000.00816.91
8.0.230.0040.00416.82
8.0.220.0080.00016.79
8.0.210.0040.00416.63
8.0.200.0030.00316.89
8.0.190.0040.00416.72
8.0.180.0050.00216.79
8.0.170.0000.00816.75
8.0.160.0000.00716.90
8.0.150.0030.00316.66
8.0.140.0030.00316.75
8.0.130.0030.00313.27
8.0.120.0000.00816.67
8.0.110.0040.00416.77
8.0.100.0000.00816.79
8.0.90.0070.00016.55
8.0.80.0190.00316.73
8.0.70.0080.00016.67
8.0.60.0000.00716.84
8.0.50.0080.00016.82
8.0.30.0100.00917.01
8.0.20.0060.01417.40
8.0.10.0040.00416.88
8.0.00.0090.01016.69
7.4.330.0000.00515.02
7.4.320.0030.00316.33
7.4.300.0040.00416.29
7.4.290.0040.00416.43
7.4.280.0000.00716.48
7.4.270.0040.00416.32
7.4.260.0070.00316.46
7.4.250.0040.00416.35
7.4.240.0010.00616.48
7.4.230.0070.00016.41
7.4.220.0040.01416.58
7.4.210.0090.00716.49
7.4.200.0050.00216.30
7.4.190.0000.00716.64
7.4.160.0100.01016.39
7.4.150.0140.00317.40
7.4.140.0110.00517.86
7.4.130.0140.00316.42
7.4.120.0090.00816.58
7.4.110.0120.01216.48
7.4.100.0060.01816.27
7.4.90.0070.01516.34
7.4.80.0080.01119.39
7.4.70.0100.00616.20
7.4.60.0080.00816.33
7.4.50.0050.00016.00
7.4.40.0090.00622.77
7.4.30.0060.01316.46
7.4.00.0080.00814.70
7.3.330.0050.00312.88
7.3.320.0020.00213.00
7.3.310.0050.00216.01
7.3.300.0000.00716.14
7.3.290.0060.01216.19
7.3.280.0070.01216.16
7.3.270.0060.01217.40
7.3.260.0120.00816.32
7.3.250.0130.00316.23
7.3.240.0120.00616.35
7.3.230.0080.00916.46
7.3.210.0120.01216.37
7.3.200.0130.00319.39
7.3.190.0150.00616.25
7.3.180.0060.00916.35
7.3.170.0100.00616.40
7.3.160.0150.00616.54
7.3.120.0100.00714.61
7.3.110.0150.00014.52
7.3.100.0090.00614.71
7.3.90.0070.00614.88
7.3.80.0040.01214.64
7.3.70.0060.00314.58
7.3.60.0060.00614.48
7.3.50.0040.00814.84
7.3.40.0030.01614.52
7.3.30.0100.00714.60
7.3.20.0040.01416.57
7.3.10.0050.01016.65
7.3.00.0050.00916.45
7.2.330.0120.00616.30
7.2.320.0150.00916.39
7.2.310.0130.00316.29
7.2.300.0130.01316.29
7.2.290.0070.01316.28
7.2.250.0170.00314.60
7.2.240.0110.00715.23
7.2.230.0090.00615.11
7.2.220.0000.01314.91
7.2.210.0100.00315.13
7.2.200.0030.00814.87
7.2.190.0000.01414.99
7.2.180.0030.00614.85
7.2.170.0030.01714.75
7.2.130.0070.00316.79
7.2.120.0060.01016.88
7.2.110.0000.01616.90
7.2.100.0030.00616.99
7.2.90.0100.00316.86
7.2.80.0100.00616.66
7.2.70.0000.01116.72
7.2.60.0070.00716.54
7.2.50.0060.00616.78
7.2.40.0040.01116.97
7.2.30.0080.00316.99
7.2.20.0000.01416.42
7.2.10.0060.00316.93
7.2.00.0070.00316.54
7.1.330.0060.00915.74
7.1.320.0030.01015.63
7.1.310.0070.00415.81
7.1.300.0070.00415.60
7.1.290.0030.00715.70
7.1.280.0040.01115.75
7.1.270.0100.00315.66
7.1.260.0050.00515.68
7.1.250.0060.00315.70
7.1.70.0070.00017.00
7.1.60.0100.00719.82
7.1.50.0110.00416.87
7.1.00.0070.07322.28
7.0.200.0100.00316.82
7.0.140.0030.07021.97
7.0.100.0100.07720.17
7.0.90.0030.09019.90
7.0.80.0130.07019.96
7.0.70.0070.08719.93
7.0.60.0070.08019.79
7.0.50.0070.04720.34
7.0.40.0070.08020.04
7.0.30.0100.07020.10
7.0.20.0030.09020.11
7.0.10.0030.07719.95
7.0.00.0130.08020.14
5.6.280.0070.06720.89
5.6.250.0130.07320.75
5.6.240.0100.05320.53
5.6.230.0100.08320.58
5.6.220.0130.07720.55
5.6.210.0200.07020.59
5.6.200.0130.07321.07
5.6.190.0070.08321.16
5.6.180.0130.06021.13
5.6.170.0070.08021.07
5.6.160.0030.07721.14
5.6.150.0030.08721.01
5.6.140.0130.05721.08
5.6.130.0100.08720.93
5.6.120.0130.06320.95
5.6.110.0070.08320.96
5.6.100.0130.04021.01
5.6.90.0030.05321.01
5.6.80.0130.07320.32
5.6.70.0100.06320.39
5.6.60.0030.05720.45
5.6.50.0070.03720.43
5.6.40.0100.07020.44
5.6.30.0100.05020.39
5.6.20.0230.06720.46
5.6.10.0100.03720.31
5.6.00.0100.07020.29
5.5.380.0130.08320.43
5.5.370.0100.08020.45
5.5.360.0230.06020.38
5.5.350.0130.07020.45
5.5.340.0100.08320.90
5.5.330.0070.05720.86
5.5.320.0070.08720.62
5.5.310.0130.07020.87
5.5.300.0070.04020.91
5.5.290.0130.07320.91
5.5.280.0100.08320.83
5.5.270.0070.08020.81
5.5.260.0130.07020.77
5.5.250.0030.08020.69
5.5.240.0070.06020.22
5.5.230.0070.05720.25
5.5.220.0070.04320.17
5.5.210.0130.07320.30
5.5.200.0100.04320.27
5.5.190.0070.07320.22
5.5.180.0030.08320.15
5.5.160.0100.07720.28
5.5.150.0100.08020.12
5.5.140.0070.04720.16
5.5.130.0100.07320.22
5.5.120.0100.07319.98
5.5.110.0100.07320.14
5.5.100.0030.07020.15
5.5.90.0070.07320.10
5.5.80.0100.06320.03
5.5.70.0100.04320.09
5.5.60.0000.07020.05
5.5.50.0100.05720.05
5.5.40.0130.07320.14
5.5.30.0100.06320.02
5.5.20.0070.04720.05
5.5.10.0070.04320.06
5.5.00.0070.07320.08
5.4.450.0100.07319.45
5.4.440.0100.08019.23
5.4.430.0070.05019.26
5.4.420.0070.07719.29
5.4.410.0070.06719.16
5.4.400.0030.03719.23
5.4.390.0100.08018.98
5.4.380.0070.07319.10
5.4.370.0170.04719.11
5.4.360.0030.05718.78
5.4.350.0070.07718.90
5.4.340.0030.08019.12
5.4.320.0100.07018.81
5.4.310.0100.07018.91
5.4.300.0130.06318.78
5.4.290.0130.03718.96
5.4.280.0030.05719.06
5.4.270.0200.04718.89
5.4.260.0100.05318.78
5.4.250.0130.05018.80
5.4.240.0130.07318.90
5.4.230.0130.07018.96
5.4.220.0070.07719.02
5.4.210.0070.04718.80
5.4.200.0130.06718.79
5.4.190.0170.05019.11
5.4.180.0100.04018.89
5.4.170.0030.07719.02
5.4.160.0130.07319.04
5.4.150.0030.08019.04
5.4.140.0170.06716.38
5.4.130.0130.06316.28
5.4.120.0100.06716.36
5.4.110.0130.06716.22
5.4.100.0070.07716.36
5.4.90.0100.07716.38
5.4.80.0100.07016.40
5.4.70.0070.07016.36
5.4.60.0070.07716.30
5.4.50.0200.06316.35
5.4.40.0070.03716.47
5.4.30.0070.07716.23
5.4.20.0100.06716.23
5.4.10.0070.06016.23
5.4.00.0100.05315.73
5.3.290.0070.05714.59
5.3.280.0070.04314.40
5.3.270.0070.04714.52
5.3.260.0030.07314.56
5.3.250.0070.06314.59
5.3.240.0070.07314.59
5.3.230.0070.04014.60
5.3.220.0070.05714.51
5.3.210.0070.07314.55
5.3.200.0100.06014.44
5.3.190.0100.06714.47
5.3.180.0000.04314.42
5.3.170.0030.05314.55
5.3.160.0130.06314.52
5.3.150.0030.04714.56
5.3.140.0030.05314.41
5.3.130.0000.04714.48
5.3.120.0100.07714.46
5.3.110.0100.06714.41
5.3.100.0130.07313.87
5.3.90.0130.07713.96
5.3.80.0070.07313.95
5.3.70.0070.07013.87
5.3.60.0130.06013.77
5.3.50.0030.07313.85
5.3.40.0000.08313.80
5.3.30.0230.05313.90
5.3.20.0100.06313.68
5.3.10.0130.06313.68
5.3.00.0030.07313.68
5.2.170.0000.06313.68
5.2.160.0100.06013.68
5.2.150.0070.06313.68
5.2.140.0030.06713.68
5.2.130.0030.06313.68
5.2.120.0070.05013.68
5.2.110.0100.06013.68
5.2.100.0100.05013.68
5.2.90.0000.06313.68
5.2.80.0070.05713.68
5.2.70.0030.04713.68
5.2.60.0030.06313.68
5.2.50.0030.06013.68
5.2.40.0000.07013.68
5.2.30.0070.07013.68
5.2.20.0100.05013.68
5.2.10.0000.06313.68
5.2.00.0030.04713.68
5.1.60.0100.02313.68
5.1.50.0130.04013.68
5.1.40.0100.04013.68
5.1.30.0030.05313.68
5.1.20.0070.04013.68
5.1.10.0030.05713.68
5.1.00.0070.05013.68
5.0.50.0000.04013.68
5.0.40.0070.02313.68
5.0.30.0000.07013.68
5.0.20.0130.03313.68
5.0.10.0000.04013.68
5.0.00.0070.06013.68
4.4.90.0070.03313.68
4.4.80.0070.02713.68
4.4.70.0000.03713.68
4.4.60.0000.04013.68
4.4.50.0030.02013.68
4.4.40.0000.04713.68
4.4.30.0030.03313.68
4.4.20.0000.02713.68
4.4.10.0030.03313.68
4.4.00.0000.05013.68
4.3.110.0070.02313.68
4.3.100.0070.02313.68
4.3.90.0030.02713.68
4.3.80.0070.03713.68
4.3.70.0030.02713.68
4.3.60.0000.01713.68
4.3.50.0000.02013.68
4.3.40.0070.04013.68
4.3.30.0000.03713.68
4.3.20.0000.03713.68
4.3.10.0030.03313.68
4.3.00.0070.03013.68

preferences:
44.52 ms | 400 KiB | 5 Q