3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Hello { private static $greeting = 'Hello'; private static $initialized = false; private static function initialize() { if (self::$initialized) return; self::$greeting .= ' There!'; self::$initialized = true; } public static function greet() { self::initialize(); echo self::$greeting; } } Hello::greet(); // Hello There!

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)
8.3.70.0190.00318.18
8.3.60.0120.00418.38
8.3.50.0070.00916.48
8.3.40.0090.00618.54
8.3.30.0040.01118.69
8.3.20.0040.00418.63
8.3.10.0000.00820.58
8.3.00.0030.00517.50
8.2.180.0090.01316.75
8.2.170.0110.00422.96
8.2.160.0140.00722.12
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0000.00719.77
8.2.110.0090.00020.56
8.2.100.0060.00617.91
8.2.90.0000.00819.34
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0000.00718.04
8.2.50.0030.00618.07
8.2.40.0000.00918.16
8.2.30.0030.00618.19
8.2.20.0080.00017.71
8.2.10.0080.00017.69
8.2.00.0030.00517.66
8.1.280.0160.00025.92
8.1.270.0050.00323.99
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00322.27
8.1.230.0110.00017.58
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0060.00317.36
8.1.190.0040.00417.53
8.1.180.0000.00818.10
8.1.170.0080.00018.80
8.1.160.0000.00718.71
8.1.150.0000.00718.62
8.1.140.0000.00717.45
8.1.130.0070.00017.92
8.1.120.0040.00417.41
8.1.110.0040.00417.43
8.1.100.0070.00017.41
8.1.90.0000.00717.44
8.1.80.0070.00017.40
8.1.70.0030.00317.35
8.1.60.0000.00817.60
8.1.50.0000.00817.52
8.1.40.0030.00517.50
8.1.30.0030.00517.63
8.1.20.0060.00317.63
8.1.10.0050.00317.58
8.1.00.0000.00817.40
8.0.300.0080.00018.77
8.0.290.0040.00416.63
8.0.280.0000.00718.46
8.0.270.0000.00717.18
8.0.260.0030.00316.70
8.0.250.0040.00416.94
8.0.240.0030.00616.88
8.0.230.0000.00816.78
8.0.220.0030.00316.73
8.0.210.0050.00216.75
8.0.200.0060.00016.89
8.0.190.0040.00816.87
8.0.180.0040.00416.90
8.0.170.0060.00316.94
8.0.160.0040.00416.75
8.0.150.0030.00516.78
8.0.140.0060.00316.78
8.0.130.0000.00513.21
8.0.120.0040.00416.80
8.0.110.0030.00616.82
8.0.100.0000.00716.86
8.0.90.0040.00416.82
8.0.80.0090.00616.78
8.0.70.0000.00716.83
8.0.60.0070.00016.79
8.0.50.0070.00016.87
8.0.30.0080.01517.13
8.0.20.0140.00517.23
8.0.10.0040.00416.93
8.0.00.0100.01016.66
7.4.330.0060.00014.77
7.4.320.0030.00316.55
7.4.300.0030.00316.62
7.4.290.0030.00316.65
7.4.280.0000.00916.51
7.4.270.0060.00016.62
7.4.260.0030.00313.34
7.4.250.0080.00016.43
7.4.240.0070.00016.66
7.4.230.0000.00816.41
7.4.220.0070.01016.67
7.4.210.0060.00816.52
7.4.200.0030.00316.30
7.4.190.0030.00316.52
7.4.160.0100.00816.62
7.4.150.0120.00617.07
7.4.140.0080.00817.19
7.4.130.0110.00816.46
7.4.120.0060.01416.40
7.4.110.0070.01016.34
7.4.100.0090.00916.59
7.4.90.0060.01216.53
7.4.80.0090.00918.80
7.4.70.0130.00816.35
7.4.60.0120.00916.55
7.4.50.0040.00416.40
7.4.40.0060.00922.27
7.4.30.0060.01016.56
7.4.00.0030.01515.10
7.3.330.0000.00613.16
7.3.320.0000.00513.05
7.3.310.0040.00416.29
7.3.300.0000.00716.34
7.3.290.0090.00916.25
7.3.280.0080.00816.28
7.3.270.0090.01217.07
7.3.260.0080.01218.24
7.3.250.0100.01216.46
7.3.240.0050.01316.54
7.3.230.0120.00616.39
7.3.210.0170.00016.53
7.3.200.0090.00619.39
7.3.190.0100.00716.23
7.3.180.0160.00016.30
7.3.170.0170.00316.55
7.3.160.0030.01316.21
7.3.120.0070.01114.98
7.3.110.0000.01314.62
7.3.100.0060.00614.82
7.3.90.0040.01114.61
7.3.80.0000.01714.52
7.3.70.0030.01414.64
7.3.60.0110.00314.84
7.3.50.0070.00714.66
7.3.40.0030.01014.54
7.3.30.0030.01014.86
7.3.20.0140.00016.39
7.3.10.0090.00816.36
7.3.00.0060.00616.56
7.2.330.0150.00616.72
7.2.320.0130.00316.74
7.2.310.0140.00416.73
7.2.300.0100.00716.75
7.2.290.0110.00716.68
7.2.240.0080.00814.83
7.2.230.0030.01414.88
7.2.220.0070.00714.81
7.2.210.0030.01015.07
7.2.200.0060.00315.00
7.2.190.0100.00615.12
7.2.180.0030.01015.07
7.2.170.0040.01415.18
7.2.160.0060.00914.96
7.2.150.0120.00316.96
7.2.140.0000.01516.87
7.2.130.0070.01016.90
7.2.120.0060.01016.91
7.2.110.0090.00616.95
7.2.100.0030.00916.87
7.2.90.0090.00616.93
7.2.80.0100.00316.72
7.2.70.0080.00816.91
7.2.60.0030.01317.02
7.2.50.0090.00616.96
7.2.40.0120.00316.77
7.2.30.0100.00716.98
7.2.20.0040.01116.91
7.2.10.0040.00717.00
7.2.00.0020.01218.13
7.1.330.0060.00615.81
7.1.320.0060.00315.92
7.1.310.0000.01115.79
7.1.300.0160.00015.65
7.1.290.0030.00615.55
7.1.280.0040.01215.77
7.1.270.0070.00315.73
7.1.260.0070.01015.47
7.1.250.0070.00315.52
7.1.100.0080.00317.68
7.1.70.0040.00417.12
7.1.60.0170.00017.09
7.1.50.0100.01016.48
7.1.00.0030.07322.32
7.0.200.0110.00316.77
7.0.140.0030.06721.96
7.0.120.0030.03722.08
7.0.110.0200.06719.95
7.0.100.0070.07720.00
7.0.90.0070.07319.86
7.0.80.0100.07320.02
7.0.70.0100.08019.98
7.0.60.0030.08320.11
7.0.50.0100.08020.08
7.0.40.0030.07719.82
7.0.30.0030.08719.65
7.0.20.0070.08019.75
7.0.10.0070.07719.77
7.0.00.0130.07719.71
5.6.280.0070.07021.13
5.6.260.0070.07720.73
5.6.250.0030.08320.70
5.6.240.0000.08320.48
5.6.230.0030.09020.66
5.6.220.0070.08020.68
5.6.210.0070.06720.57
5.6.200.0070.08720.66
5.6.190.0070.08320.65
5.6.180.0030.06320.71
5.6.170.0100.08020.71
5.6.160.0100.07720.66
5.6.150.0130.07020.56
5.6.140.0170.07720.65
5.6.130.0100.07320.63
5.6.120.0100.07720.64
5.6.110.0070.08020.55
5.6.100.0200.05320.58
5.6.90.0130.06320.57
5.6.80.0100.04720.25
5.6.70.0130.07719.93
5.6.60.0070.07320.00
5.6.50.0130.06019.86
5.6.40.0070.08019.83
5.6.30.0030.07319.98
5.6.20.0170.07019.98
5.6.10.0130.07019.97
5.6.00.0170.07020.02
5.5.380.0030.08317.57
5.5.370.0070.07717.70
5.5.360.0070.08017.59
5.5.350.0100.04317.65
5.5.340.0000.08318.14
5.5.330.0030.08318.05
5.5.320.0030.07717.93
5.5.310.0100.07717.92
5.5.300.0070.04718.20
5.5.290.0070.08018.09
5.5.280.0100.04018.22
5.5.270.0030.04317.92
5.5.260.0100.06718.22
5.5.250.0130.07017.94
5.5.240.0030.07017.43
5.5.230.0070.06717.59
5.5.220.0130.06717.30
5.5.210.0130.04317.63
5.5.200.0070.08017.57
5.5.190.0030.09017.18
5.5.180.0030.07017.57
5.5.160.0030.07717.27
5.5.150.0070.04317.57
5.5.140.0100.07017.42
5.5.130.0070.07317.57
5.5.120.0130.06317.59
5.5.110.0030.08317.27
5.5.100.0000.08717.18
5.5.90.0100.06017.16
5.5.80.0130.07017.38
5.5.70.0130.06317.17
5.5.60.0070.07017.29
5.5.50.0070.08017.04
5.5.40.0070.08017.31
5.5.30.0130.07317.31
5.5.20.0030.08017.36
5.5.10.0130.07317.31
5.5.00.0170.07317.16
5.4.450.0070.07319.57
5.4.440.0170.07319.43
5.4.430.0030.08719.54
5.4.420.0030.07719.65
5.4.410.0100.07019.40
5.4.400.0030.08019.19
5.4.390.0170.06718.99
5.4.380.0100.07019.34
5.4.370.0030.07719.24
5.4.360.0100.07019.24
5.4.350.0070.05719.23
5.4.340.0070.07319.03
5.4.320.0100.07019.03
5.4.310.0070.07319.29
5.4.300.0070.07319.09
5.4.290.0070.08019.24
5.4.280.0030.08019.33
5.4.270.0000.08319.09
5.4.260.0100.06019.16
5.4.250.0070.06318.98
5.4.240.0030.08019.18
5.4.230.0070.07319.23
5.4.220.0030.07719.00
5.4.210.0070.06019.18
5.4.200.0100.05319.01
5.4.190.0000.08718.94
5.4.180.0030.04719.01
5.4.170.0170.06719.23
5.4.160.0070.07718.93
5.4.150.0100.04019.06
5.4.140.0000.07016.56
5.4.130.0130.06716.38
5.4.120.0070.06716.43
5.4.110.0070.07316.47
5.4.100.0070.07316.50
5.4.90.0100.06316.49
5.4.80.0170.05716.40
5.4.70.0030.07716.55
5.4.60.0100.07016.45
5.4.50.0130.06716.63
5.4.40.0100.06016.58
5.4.30.0030.07716.63
5.4.20.0100.07016.38
5.4.10.0030.07716.62
5.4.00.0170.06016.00
5.3.290.0000.06314.63
5.3.280.0100.07314.75
5.3.270.0030.07314.59
5.3.260.0070.08014.73
5.3.250.0130.06714.64
5.3.240.0070.07714.56
5.3.230.0000.04714.83
5.3.220.0130.07314.70
5.3.210.0070.07714.60
5.3.200.0030.08314.42
5.3.190.0070.06714.56
5.3.180.0030.07314.43
5.3.170.0030.07314.60
5.3.160.0030.08014.42
5.3.150.0030.07014.59
5.3.140.0030.07314.65
5.3.130.0030.06314.77
5.3.120.0070.07714.67
5.3.110.0100.07314.59
5.3.100.0070.07314.17
5.3.90.0170.03314.15
5.3.80.0070.07314.00
5.3.70.0170.06714.08
5.3.60.0030.07013.96
5.3.50.0100.05013.94
5.3.40.0000.04314.09
5.3.30.0000.07313.91
5.3.20.0070.07013.65
5.3.10.0100.07013.65
5.3.00.0070.05013.72
5.2.170.0000.03311.14
5.2.160.0070.06311.24
5.2.150.0070.05011.00
5.2.140.0030.06311.22
5.2.130.0030.03711.12
5.2.120.0070.03311.09
5.2.110.0030.06711.33
5.2.100.0070.06311.10
5.2.90.0000.06310.96
5.2.80.0030.05011.09
5.2.70.0070.06011.23
5.2.60.0070.06011.19
5.2.50.0070.06011.04
5.2.40.0070.06310.98
5.2.30.0030.05710.95
5.2.20.0070.06010.94
5.2.10.0000.06310.94
5.2.00.0070.05710.86
5.1.60.0030.03710.17
5.1.50.0000.06010.00
5.1.40.0100.03710.00
5.1.30.0100.05010.31
5.1.20.0030.04310.43
5.1.10.0000.06010.03
5.1.00.0070.04710.07
5.0.50.0070.0309.71
5.0.40.0000.0439.71
5.0.30.0030.0679.71
5.0.20.0030.0339.71
5.0.10.0100.0339.71
5.0.00.0000.0709.71
4.4.90.0000.0279.71
4.4.80.0030.0279.71
4.4.70.0030.0409.71
4.4.60.0100.0309.71
4.4.50.0000.0409.71
4.4.40.0000.0539.71
4.4.30.0000.0239.71
4.4.20.0000.0279.71
4.4.10.0030.0309.71
4.4.00.0000.0379.71
4.3.110.0170.0179.71
4.3.100.0000.0279.71
4.3.90.0000.0179.71
4.3.80.0000.0309.71
4.3.70.0070.0309.71
4.3.60.0000.0339.71
4.3.50.0070.0279.71
4.3.40.0000.0479.71
4.3.30.0030.0339.71
4.3.20.0000.0209.71
4.3.10.0000.0379.71
4.3.00.0170.0179.71

preferences:
71.25 ms | 401 KiB | 5 Q