3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Singleton { private function __construct(){} private function __clone(){} private function __sleep(){} private function __wakeup(){} private static $instance; public static function getInstance() { if ( ! self::$instance) { self::$instance = new static(); } return self::$instance; } } $obj1 = Singleton::getInstance(); $obj2 = Singleton::getInstance(); var_dump(spl_object_hash($obj1) == spl_object_hash($obj2));

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)
8.3.60.0150.00018.28
8.3.50.0120.00521.27
8.3.40.0110.00418.84
8.3.30.0140.00019.04
8.3.20.0040.00420.20
8.3.10.0050.00322.09
8.3.00.0070.00020.82
8.2.180.0160.00316.50
8.2.170.0070.01122.96
8.2.160.0070.00719.22
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0040.00419.49
8.2.110.0090.00022.08
8.2.100.0080.00419.39
8.2.90.0070.00019.27
8.2.80.0000.00818.03
8.2.70.0060.00317.50
8.2.60.0030.00517.90
8.2.50.0040.00418.07
8.2.40.0060.00318.22
8.2.30.0030.00517.95
8.2.20.0000.00717.73
8.2.10.0040.00417.78
8.2.00.0040.00417.74
8.1.280.0140.00725.92
8.1.270.0040.00422.14
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00023.83
8.1.230.0110.00019.23
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0040.00417.41
8.1.180.0030.00618.82
8.1.170.0040.00818.41
8.1.160.0000.00922.20
8.1.150.0110.00018.72
8.1.140.0040.00417.34
8.1.130.0030.00317.84
8.1.120.0030.00317.53
8.1.110.0050.00317.36
8.1.100.0070.00017.35
8.1.90.0000.00717.43
8.1.80.0040.00417.44
8.1.70.0040.00417.48
8.1.60.0040.00417.60
8.1.50.0000.00817.55
8.1.40.0080.00017.45
8.1.30.0000.00717.46
8.1.20.0050.00317.56
8.1.10.0040.00417.57
8.1.00.0000.00817.54
8.0.300.0080.00018.77
8.0.290.0040.00416.93
8.0.280.0050.00218.52
8.0.270.0000.00717.27
8.0.260.0030.00316.94
8.0.250.0000.00717.01
8.0.240.0000.00717.09
8.0.230.0000.00717.06
8.0.220.0000.00616.96
8.0.210.0070.00016.86
8.0.200.0030.00317.07
8.0.190.0040.00417.07
8.0.180.0040.00416.99
8.0.170.0030.00516.94
8.0.160.0040.00416.99
8.0.150.0030.00416.86
8.0.140.0000.00716.92
8.0.130.0030.00313.44
8.0.120.0040.00416.80
8.0.110.0040.00416.85
8.0.100.0040.00416.95
8.0.90.0000.00716.93
8.0.80.0160.00317.03
8.0.70.0070.00016.77
8.0.60.0070.00016.92
8.0.50.0050.00317.03
8.0.30.0110.00917.10
8.0.20.0080.01017.41
8.0.10.0000.00817.13
8.0.00.0080.01416.70
7.4.330.0060.00015.09
7.4.320.0000.00616.48
7.4.300.0060.00016.50
7.4.290.0000.00816.41
7.4.280.0000.00716.50
7.4.270.0030.00316.43
7.4.260.0030.00316.38
7.4.250.0030.00616.60
7.4.240.0020.00516.57
7.4.230.0000.00716.51
7.4.220.0030.01316.57
7.4.210.0040.01116.60
7.4.200.0000.00716.63
7.4.190.0030.00316.58
7.4.160.0060.01016.54
7.4.150.0100.00717.40
7.4.140.0120.00517.86
7.4.130.0080.01216.45
7.4.120.0080.01016.49
7.4.110.0080.01616.41
7.4.100.0070.01116.60
7.4.90.0060.01216.55
7.4.80.0100.00719.39
7.4.70.0090.01016.47
7.4.60.0080.00816.41
7.4.50.0030.00316.55
7.4.40.0060.00722.77
7.4.30.0190.00316.48
7.4.00.0030.01014.94
7.3.330.0080.00013.10
7.3.320.0030.00313.17
7.3.310.0030.00316.37
7.3.300.0000.00616.09
7.3.290.0130.00616.30
7.3.280.0080.00916.30
7.3.270.0130.00617.40
7.3.260.0100.01016.30
7.3.250.0080.01116.47
7.3.240.0060.00916.53
7.3.230.0090.00916.50
7.3.210.0130.00316.51
7.3.200.0130.00419.39
7.3.190.0130.00316.38
7.3.180.0090.00616.36
7.3.170.0060.01016.32
7.3.160.0150.00316.36
7.3.120.0110.00414.82
7.3.10.0040.01116.63
7.3.00.0000.01316.53
7.2.330.0130.00716.34
7.2.320.0030.01416.67
7.2.310.0090.00916.52
7.2.300.0080.01616.80
7.2.290.0040.01316.61
7.2.130.0080.00316.84
7.2.120.0080.00816.65
7.2.110.0030.00616.91
7.2.100.0120.00016.79
7.2.90.0080.00816.91
7.2.80.0040.00616.64
7.2.70.0060.00916.73
7.2.60.0020.00716.75
7.2.50.0060.00916.86
7.2.40.0090.00316.66
7.2.30.0060.00916.79
7.2.20.0000.01417.13
7.2.10.0040.00816.60
7.2.00.0100.00616.79
7.1.250.0000.00915.80
7.1.200.0060.00615.86
7.1.100.0670.01116.26
7.1.70.0000.00717.23
7.1.60.0060.01619.82
7.1.50.0090.00416.87
7.1.00.0000.05722.31
7.0.200.0000.01016.46
7.0.140.0030.07022.12
7.0.60.0070.08020.04
7.0.50.0030.07317.86
7.0.40.0070.05720.14
7.0.30.0230.04320.08
7.0.20.0330.07720.05
7.0.10.0200.05720.06
7.0.00.0130.04020.25
5.6.280.0070.07020.79
5.6.210.0100.08320.71
5.6.200.0170.07318.29
5.6.190.0070.04020.61
5.6.180.3300.04020.48
5.6.170.0330.03720.48
5.6.160.0030.07320.47
5.6.150.0070.05318.25
5.6.140.0030.05318.18
5.6.130.0100.07718.18
5.6.120.0000.05321.11
5.6.110.0030.07721.09
5.6.100.0100.08321.12
5.6.90.0100.07720.98
5.6.80.0070.07020.51
5.6.70.0270.07320.38
5.5.350.0000.08720.41
5.5.340.0070.07717.95
5.5.330.0030.05720.19
5.5.320.0300.04320.27
5.5.310.0300.05720.36
5.5.300.0100.07717.96
5.5.290.0070.06018.13
5.5.280.0100.07720.72
5.5.270.0170.06320.77
5.5.260.0070.08720.65
5.5.250.0030.08320.50
5.5.240.0070.06720.27
5.4.450.0400.06319.17
5.4.440.0800.05319.61
5.4.430.0800.04719.38
5.4.420.0230.05019.57
5.4.410.0670.05719.45
5.4.400.1030.05018.54
5.4.390.1170.05718.83
5.4.380.0270.05318.61
5.4.370.0430.04718.60
5.4.360.0200.05318.61
5.4.350.0370.04018.80
5.4.340.0170.05718.48
5.4.320.0070.04612.51
5.4.310.0100.04112.50
5.4.300.0080.03912.50
5.4.290.0080.04512.50
5.4.280.0060.04012.39
5.4.270.0090.03312.40
5.4.260.0130.07018.63
5.4.250.0070.07718.96
5.4.240.0070.07018.96
5.4.230.0130.05718.95
5.4.220.0170.05718.94
5.4.210.0100.05319.09
5.4.200.0000.06318.76
5.4.190.0070.05718.90
5.4.180.0030.08018.79
5.4.170.0100.05018.93
5.4.160.0070.05318.93
5.4.150.0200.04718.79
5.4.140.0070.07316.40
5.4.130.0100.04716.43
5.4.120.0070.05316.55
5.4.110.0130.05016.50
5.4.100.0030.05316.41
5.4.90.0100.06316.62
5.4.80.0070.06316.46
5.4.70.0070.06316.44
5.4.60.0170.03716.36
5.4.50.0070.06316.47
5.4.40.0070.07016.51
5.4.30.0100.06316.44
5.4.20.0070.06016.44
5.4.10.0100.06716.48
5.4.00.0170.04016.10
5.3.290.0080.04012.80
5.3.280.0130.06314.64
5.3.270.0070.06314.69
5.3.260.0100.07314.46
5.3.250.0030.08014.65
5.3.240.0070.06714.75
5.3.230.0130.06314.60
5.3.220.0070.06714.71
5.3.210.0170.04714.54
5.3.200.0070.05314.75
5.3.190.0100.06714.54
5.3.180.0030.07714.54
5.3.170.0000.05714.54
5.3.160.0000.07314.64
5.3.150.0000.07314.39
5.3.140.0100.05014.70
5.3.130.0100.05314.63
5.3.120.0070.06314.73
5.3.110.0070.05714.64
5.3.100.0070.07014.27
5.3.90.0070.07014.20
5.3.80.0070.06014.09
5.3.70.0030.07314.20
5.3.60.0130.05314.09
5.3.50.0030.07313.94
5.3.40.0100.06013.92
5.3.30.0230.05313.98
5.3.20.0170.06013.78
5.3.10.0070.07013.62
5.3.00.0170.05313.74
5.2.170.0130.03311.21
5.2.160.0100.04011.13
5.2.150.0000.04711.05
5.2.140.0100.04011.14
5.2.130.0170.03311.09
5.2.120.0070.05711.19
5.2.110.0070.04311.07
5.2.100.0070.04311.17
5.2.90.0070.04010.93
5.2.80.0070.05311.16
5.2.70.0100.05011.31
5.2.60.0030.04711.13
5.2.50.0130.05011.11
5.2.40.0070.04711.18
5.2.30.0100.05311.14
5.2.20.0070.05311.03
5.2.10.0070.03711.08
5.2.00.0000.04710.91
5.1.60.0030.03710.01
5.1.50.0070.03310.04
5.1.40.0100.0379.94
5.1.30.0030.03710.29
5.1.20.0030.04010.20
5.1.10.0070.04710.17
5.1.00.0030.03710.14
5.0.50.0070.0338.61
5.0.40.0100.0208.51
5.0.30.0030.0438.18
5.0.20.0000.0408.16
5.0.10.0000.0308.13
5.0.00.0070.0408.07
4.4.90.0070.0237.07
4.4.80.0070.0207.07
4.4.70.0000.0237.07
4.4.60.0000.0277.07
4.4.50.0030.0307.07
4.4.40.0070.0437.07
4.4.30.0030.0237.07
4.4.20.0030.0207.07
4.4.10.0030.0277.07
4.4.00.0000.0477.07
4.3.110.0070.0237.07
4.3.100.0000.0237.07
4.3.90.0000.0277.07
4.3.80.0000.0407.07
4.3.70.0000.0237.07
4.3.60.0000.0277.07
4.3.50.0000.0307.07
4.3.40.0000.0377.07
4.3.30.0030.0307.07
4.3.20.0070.0177.07
4.3.10.0070.0177.07
4.3.00.0130.0206.78

preferences:
45.27 ms | 401 KiB | 5 Q