3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Valerie { private static $instance; public static function getInstance(): self { return self::$instance ?? new self(); } }

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)
8.4.140.0120.00817.19
8.4.130.0110.00817.84
8.4.120.0080.01123.89
8.4.110.0120.00818.78
8.4.100.0170.00417.63
8.4.90.0130.00720.74
8.4.80.0090.00818.89
8.4.70.0060.00918.72
8.4.60.0120.00822.13
8.4.50.0120.00818.52
8.4.40.0070.01017.41
8.4.30.0110.01117.55
8.4.20.0060.00919.38
8.4.10.0070.01020.84
8.3.270.0080.01216.41
8.3.260.0130.00716.49
8.3.250.0140.00418.98
8.3.240.0100.01016.40
8.3.230.0160.00316.61
8.3.220.0090.01118.77
8.3.210.0110.00618.28
8.3.200.0030.00616.52
8.3.190.0030.00517.09
8.3.180.0100.00820.77
8.3.170.0030.01518.84
8.3.160.0110.00818.22
8.3.150.0110.00716.38
8.3.140.0060.00316.35
8.3.130.0080.00016.73
8.3.120.0080.00018.78
8.3.110.0040.00420.94
8.3.100.0030.00616.66
8.3.90.0130.00326.77
8.3.80.0060.00618.41
8.3.70.0110.00716.50
8.3.60.0120.00318.29
8.3.50.0080.00918.09
8.3.40.0120.00618.65
8.3.30.0040.01118.42
8.3.20.0160.00318.95
8.3.10.0070.00021.55
8.3.00.0090.00017.55
8.2.290.0110.00817.16
8.2.280.0110.00818.53
8.2.270.0000.00816.36
8.2.260.0040.01116.93
8.2.250.0040.00416.41
8.2.240.0040.01216.69
8.2.230.0000.01522.58
8.2.220.0100.00024.06
8.2.210.0100.01026.77
8.2.200.0100.00016.25
8.2.190.0040.01416.58
8.2.180.0120.00618.01
8.2.170.0070.00722.96
8.2.160.0100.00318.83
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0080.00019.70
8.2.120.0040.00426.35
8.2.110.0030.00621.97
8.2.100.0090.00617.97
8.2.90.0080.00017.91
8.2.80.0040.00419.40
8.2.70.0050.00317.80
8.2.60.0040.00417.80
8.2.50.0000.00818.10
8.2.40.0080.00020.86
8.2.30.0000.00719.38
8.2.20.0040.00417.86
8.2.10.0000.00718.03
8.2.00.0080.00019.24
8.1.330.0140.00515.94
8.1.320.0140.00615.86
8.1.310.0000.00816.69
8.1.300.0070.01116.01
8.1.290.0070.00430.84
8.1.280.0030.01225.92
8.1.270.0070.00022.20
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00623.82
8.1.230.0080.00319.26
8.1.220.0000.00717.74
8.1.210.0050.00318.77
8.1.200.0070.00317.11
8.1.190.0080.00017.10
8.1.180.0020.00518.10
8.1.170.0030.00518.59
8.1.160.0040.00418.66
8.1.150.0040.00418.66
8.1.140.0080.00017.86
8.1.130.0040.00417.30
8.1.120.0080.00017.34
8.1.110.0070.00017.22
8.1.100.0030.00317.33
8.1.90.0050.00317.27
8.1.80.0000.00917.31
8.1.70.0000.00717.35
8.1.60.0080.00017.30
8.1.50.0040.00417.23
8.1.40.0080.00017.28
8.1.30.0040.00417.40
8.1.20.0000.00817.41
8.1.10.0040.00417.36
8.1.00.0040.00417.24
8.0.300.0040.00418.77
8.0.290.0040.00416.58
8.0.280.0080.00018.21
8.0.270.0030.00317.04
8.0.260.0080.00016.69
8.0.250.0040.00416.80
8.0.240.0000.00716.68
8.0.230.0040.00416.79
8.0.220.0000.00716.77
8.0.210.0070.00016.77
8.0.200.0060.00316.88
8.0.190.0000.00716.83
8.0.180.0040.00416.80
8.0.170.0060.00316.68
8.0.160.0040.00416.84
8.0.150.0000.00716.55
8.0.140.0050.00316.75
8.0.130.0000.00613.22
8.0.120.0000.00816.73
8.0.110.0050.00216.66
8.0.100.0000.00716.72
8.0.90.0000.00816.81
8.0.80.0070.01416.73
8.0.70.0020.00516.69
8.0.60.0060.00316.71
8.0.50.0050.00216.63
8.0.30.0080.00916.77
8.0.20.0100.01017.40
8.0.10.0020.00516.91
8.0.00.0050.01316.65
7.4.330.0050.00015.55
7.4.320.0030.00316.47
7.4.300.0030.00316.36
7.4.290.0050.00216.45
7.4.280.0000.00916.50
7.4.270.0000.00716.50
7.4.260.0030.00316.24
7.4.250.0030.00316.32
7.4.240.0000.00716.29
7.4.230.0030.00316.56
7.4.220.0030.00616.53
7.4.210.0010.01316.38
7.4.200.0000.00716.56
7.4.160.0110.00716.32
7.4.140.0110.00917.86
7.4.130.0120.01216.31
7.4.120.0100.01016.34
7.4.110.0070.01016.16
7.4.100.0110.01116.24
7.4.90.0080.00816.19
7.4.80.0040.01419.39
7.4.70.0110.00516.18
7.4.60.0030.01416.38
7.4.50.0110.00216.15
7.4.40.0100.00716.44
7.4.00.0090.01014.76
7.3.330.0000.00513.20
7.3.320.0030.00313.19
7.3.310.0020.00516.03
7.3.300.0030.00316.17
7.3.290.0000.00616.04
7.3.280.0050.01116.20
7.3.260.0140.00616.22
7.3.240.0090.00816.31
7.3.230.0100.00616.24
7.3.210.0090.00916.23
7.3.200.0100.01116.59
7.3.190.0160.00016.15
7.3.180.0060.01116.17
7.3.170.0070.01016.40
7.3.160.0060.00916.42
7.3.120.0060.01214.41
7.3.110.0070.01014.75
7.3.100.0070.00714.52
7.3.90.0100.00614.82
7.3.80.0060.01014.71
7.3.70.0100.00314.82
7.3.60.0060.01014.54
7.3.50.0060.00614.35
7.3.40.0090.00314.48
7.3.30.0000.01114.78
7.3.20.0040.00816.53
7.3.10.0090.00716.26
7.3.00.0120.00316.35
7.2.330.0060.01216.55
7.2.320.0140.00616.29
7.2.310.0130.00416.42
7.2.300.0140.00316.34
7.2.290.0100.00716.26
7.2.250.0090.00614.91
7.2.240.0130.00715.02
7.2.230.0070.01015.02
7.2.220.0030.00914.71
7.2.210.0030.01015.01
7.2.200.0060.00614.85
7.2.190.0040.01114.88
7.2.180.0090.00614.92
7.2.170.0100.00614.88
7.2.130.0080.01116.15
7.2.120.0110.01116.05
7.2.110.0100.00616.58
7.2.100.0040.01216.04
7.2.90.0070.00716.71
7.2.80.0120.00616.20
7.2.70.0100.00716.16
7.2.60.0110.00616.51
7.2.50.0110.00815.99
7.2.40.0350.00716.96
7.2.30.0210.00917.04
7.2.20.0440.00716.98
7.2.10.0620.00417.10
7.2.00.0470.01017.19
7.1.330.0000.01415.45
7.1.320.0100.00715.80
7.1.310.0030.00915.68
7.1.300.0070.00715.62
7.1.290.0060.00915.57
7.1.280.0030.00615.41
7.1.270.0060.00615.52
7.1.260.0000.01415.70
7.1.250.0130.00415.24
7.1.200.0060.00615.51
7.1.160.0560.00816.71
7.1.150.0570.00716.56
7.1.140.1030.00616.46
7.1.130.1190.00916.60
7.1.120.0860.00516.72
7.1.110.0600.00815.76
7.1.100.0610.00616.26
7.1.90.1380.00916.03
7.1.80.0770.01116.34
7.1.70.0600.00715.20
7.1.60.0730.01233.32
7.1.50.0730.01332.77
7.1.40.0750.01332.41
7.1.30.0990.01232.51
7.1.20.0860.01032.55
7.1.10.0700.01114.46
7.1.00.0590.00914.60

preferences:
31.2 ms | 403 KiB | 5 Q