3v4l.org

run code in 300+ PHP versions simultaneously
<?php $hash = str_pad(dechex(999), 8, "0", STR_PAD_LEFT); $hash = implode(str_split($hash, 2), '/'); $hash2 = substr_replace($hash, 'f', 0, 1); printf("hash = %s, new hash = %s", $hash, $hash2);

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)
8.3.60.0110.00718.55
8.3.50.0140.00521.14
8.3.40.0090.00618.71
8.3.30.0040.01119.04
8.3.20.0070.00020.21
8.3.10.0040.00422.17
8.3.00.0080.00022.44
8.2.180.0090.00616.32
8.2.170.0070.00722.96
8.2.160.0070.00719.21
8.2.150.0080.00024.18
8.2.140.0170.00324.66
8.2.130.0110.00426.16
8.2.120.0080.00019.41
8.2.110.0060.00320.51
8.2.100.0060.00617.68
8.2.90.0000.00719.07
8.2.80.0000.00817.97
8.2.70.0030.00517.63
8.2.60.0030.00618.05
8.2.50.0050.00318.07
8.2.40.0000.00718.09
8.2.30.0080.00318.07
8.2.20.0080.00017.53
8.2.10.0020.00517.72
8.2.00.0060.00317.53
8.1.280.0140.00025.92
8.1.270.0040.00418.45
8.1.260.0000.00726.35
8.1.250.0050.00228.09
8.1.240.0110.00019.38
8.1.230.0000.01217.42
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.22
8.1.190.0040.00417.43
8.1.180.0040.00418.61
8.1.170.0060.00318.65
8.1.160.0070.00022.13
8.1.150.0040.00418.61
8.1.140.0070.00017.45
8.1.130.0000.00817.87
8.1.120.0030.00317.36
8.1.110.0000.00717.34
8.1.100.0000.00717.44
8.1.90.0000.00717.41
8.1.80.0070.00017.37
8.1.70.0040.00417.29
8.1.60.0000.00817.55
8.1.50.0070.00017.44
8.1.40.0000.00917.52
8.1.30.0000.00717.65
8.1.20.0000.00817.54
8.1.10.0030.00617.48
8.1.00.0040.00417.58
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0050.00218.33
8.0.270.0000.00717.20
8.0.260.0030.00316.81
8.0.250.0030.00317.00
8.0.240.0030.00516.84
8.0.230.0000.00716.85
8.0.220.0070.00016.91
8.0.210.0030.00316.82
8.0.200.0030.00316.82
8.0.190.0090.00016.83
8.0.180.0000.00716.92
8.0.170.0040.00416.93
8.0.160.0040.00416.97
8.0.150.0040.00416.88
8.0.140.0070.00016.77
8.0.130.0000.00513.32
8.0.120.0080.00016.85
8.0.110.0030.00516.78
8.0.100.0040.00416.88
8.0.90.0000.00717.00
8.0.80.0060.01016.80
8.0.70.0000.00716.79
8.0.60.0000.00716.77
8.0.50.0000.00716.86
8.0.30.0130.00617.11
8.0.20.0150.00817.40
8.0.10.0040.00417.08
8.0.00.0110.00916.57
7.4.330.0050.00015.00
7.4.320.0060.00016.52
7.4.300.0070.00016.54
7.4.290.0000.00716.34
7.4.280.0000.00816.52
7.4.270.0000.00716.46
7.4.260.0030.00316.56
7.4.250.0000.00716.41
7.4.240.0050.00216.47
7.4.230.0000.00716.61
7.4.220.0120.01216.41
7.4.210.0080.01016.60
7.4.200.0070.00016.64
7.4.190.0080.00016.58
7.4.160.0100.00616.38
7.4.150.0120.00617.40
7.4.140.0150.00317.86
7.4.130.0110.00816.45
7.4.120.0140.00516.45
7.4.110.0170.00016.30
7.4.100.0190.00416.56
7.4.90.0100.00716.30
7.4.80.0090.00919.39
7.4.70.0070.01716.22
7.4.60.0150.00616.33
7.4.50.0040.00416.22
7.4.40.0070.00722.77
7.4.30.0140.00316.45
7.4.00.0060.00615.07
7.3.330.0020.00213.07
7.3.320.0050.00013.03
7.3.310.0000.00716.14
7.3.300.0070.00016.19
7.3.290.0040.01116.18
7.3.280.0090.01016.17
7.3.270.0100.01017.40
7.3.260.0060.01516.18
7.3.250.0100.00716.45
7.3.240.0060.00916.16
7.3.230.0150.00916.39
7.3.210.0050.01816.14
7.3.200.0060.00919.39
7.3.190.0070.01016.26
7.3.180.0060.00916.13
7.3.170.0130.00316.42
7.3.160.0060.00916.12
7.3.120.0110.00414.74
7.2.330.0040.01216.31
7.2.320.0000.02116.36
7.2.310.0070.01016.64
7.2.300.0120.00316.57
7.2.290.0060.00916.17
7.2.60.0000.01316.88
7.2.00.0060.00619.32
7.1.200.0040.00815.66
7.1.100.0000.01618.04
7.1.70.0000.00717.13
7.1.60.0000.01117.18
7.1.50.0100.00616.97
7.1.00.0030.07022.51
7.0.200.0030.01316.56
7.0.140.0130.06721.97
7.0.110.0100.07320.05
7.0.100.0100.08320.07
7.0.90.0070.07719.92
7.0.80.0070.07719.84
7.0.70.0030.07720.03
7.0.60.0000.08320.03
7.0.50.0070.08319.79
7.0.40.0070.07019.79
7.0.30.0030.08019.87
7.0.20.0070.08019.70
7.0.10.0070.07319.73
7.0.00.0030.04019.75
5.6.280.0130.06320.99
5.6.260.0100.08320.74
5.6.250.0130.04020.62
5.6.240.0030.08020.70
5.6.230.0030.06020.63
5.6.220.0070.08020.67
5.6.210.0070.08720.68
5.6.200.0030.08320.47
5.6.190.0130.07320.61
5.6.180.0130.07720.46
5.6.170.0030.05020.70
5.6.160.0070.08320.70
5.6.150.0000.09720.66
5.6.140.0030.05020.65
5.6.130.0100.07020.58
5.6.120.0100.03320.58
5.6.110.0100.08020.69
5.6.100.0170.07020.60
5.6.90.0100.07720.61
5.6.80.0130.07020.03
5.6.70.0100.07019.99
5.6.60.0100.05020.07
5.6.50.0170.05320.06
5.6.40.0000.08019.99
5.6.30.0130.06320.05
5.6.20.0070.07319.94
5.6.10.0070.05319.99
5.6.00.0000.04719.93
5.5.380.0000.08717.63
5.5.370.0030.05017.53
5.5.360.0070.08017.49
5.5.350.0030.05317.65
5.5.340.0100.07317.98
5.5.330.0000.04718.16
5.5.320.0000.09018.26
5.5.310.0070.07717.88
5.5.300.0100.07318.02
5.5.290.0130.07718.00
5.5.280.0030.07717.98
5.5.270.0170.06718.10
5.5.260.0070.07718.08
5.5.250.0100.07717.94
5.5.240.0100.07017.55
5.5.230.0100.04017.47
5.5.220.0100.08017.39
5.5.210.0030.06717.55
5.5.200.0100.05317.36
5.5.190.0170.06017.51
5.5.180.0070.07717.20
5.5.160.0000.04317.45
5.5.150.0070.04017.21
5.5.140.0030.03717.34
5.5.130.0100.06017.19
5.5.120.0130.05717.44
5.5.110.0070.07717.11
5.5.100.0070.06717.02
5.5.90.0000.08717.34
5.5.80.0030.06717.14
5.5.70.0070.08317.39
5.5.60.0130.07017.09
5.5.50.0030.08017.09
5.5.40.0070.07017.13
5.5.30.0100.07017.39
5.5.20.0100.07317.37
5.5.10.0030.08017.34
5.5.00.0100.07717.08
5.4.450.0100.08019.33
5.4.440.0130.06719.57
5.4.430.0170.06319.32
5.4.420.0000.08319.25
5.4.410.0130.07019.14
5.4.400.0000.05019.27
5.4.390.0100.08019.02
5.4.380.0030.08019.01
5.4.370.0030.07718.95
5.4.360.0000.08018.98
5.4.350.0070.07018.98
5.4.340.0100.07319.02
5.4.320.0070.07019.07
5.4.310.0070.07019.25
5.4.300.0070.04019.27
5.4.290.0000.04719.11
5.4.280.0030.05019.02
5.4.270.0070.07019.04
5.4.260.0070.06719.16
5.4.250.0170.06719.12
5.4.240.0070.07719.00
5.4.230.0000.08019.27
5.4.220.0070.08019.26
5.4.210.0030.04719.18
5.4.200.0000.07719.02
5.4.190.0100.05318.97
5.4.180.0130.07018.93
5.4.170.0070.07319.08
5.4.160.0130.07019.07
5.4.150.0000.07718.91
5.4.140.0030.07316.22
5.4.130.0030.06016.36
5.4.120.0070.07016.34
5.4.110.0170.05716.40
5.4.100.0130.06316.50
5.4.90.0070.07016.36
5.4.80.0000.08016.40
5.4.70.0170.06316.27
5.4.60.0070.07016.16
5.4.50.0000.06716.46
5.4.40.0130.07716.55
5.4.30.0000.06016.33
5.4.20.0100.06716.10
5.4.10.0070.04016.51
5.4.00.0070.05715.81
5.3.290.0100.06014.53
5.3.280.0070.04314.54
5.3.270.0000.07714.66
5.3.260.0130.07314.70
5.3.250.0030.07714.62
5.3.240.0070.05714.50
5.3.230.0070.06014.50
5.3.220.0100.07714.48
5.3.210.0070.07714.44
5.3.200.0030.09314.43
5.3.190.0000.07714.50
5.3.180.0100.07014.42
5.3.170.0130.07014.51
5.3.160.0070.07314.58
5.3.150.0100.07014.39
5.3.140.0070.07314.34
5.3.130.0070.07014.49
5.3.120.0030.07714.41
5.3.110.0170.06714.62
5.3.100.0070.04013.98
5.3.90.0000.08313.86
5.3.80.0070.06714.11
5.3.70.0070.05714.11
5.3.60.0000.07013.88
5.3.50.0100.06713.86
5.3.40.0030.07713.84
5.3.30.0030.06714.00
5.3.20.0030.07013.75
5.3.10.0000.07713.48
5.3.00.0070.07713.69
5.2.170.0030.03012.06
5.2.160.0000.06312.06
5.2.150.0030.03012.06
5.2.140.0030.02712.06
5.2.130.0000.06012.06
5.2.120.0000.05712.06
5.2.110.0100.06012.06
5.2.100.0000.05712.06
5.2.90.0000.06712.06
5.2.80.0070.03712.06
5.2.70.0070.06312.06
5.2.60.0030.06012.06
5.2.50.0030.06312.06
5.2.40.0100.05312.06
5.2.30.0030.03712.06
5.2.20.0030.06312.06
5.2.10.0100.05012.06
5.2.00.0030.06312.06
5.1.60.0000.06012.06
5.1.50.0030.05012.06
5.1.40.0030.05712.06
5.1.30.0030.04712.06
5.1.20.0000.05712.06
5.1.10.0030.05312.06
5.1.00.0130.04312.06
5.0.50.0070.04012.06
5.0.40.0000.04712.06
5.0.30.0030.06012.06
5.0.20.0000.03012.06
5.0.10.0000.04712.06
5.0.00.0070.06012.06
4.4.90.0070.03312.06
4.4.80.0070.03012.06
4.4.70.0000.04012.06
4.4.60.0000.03312.06
4.4.50.0030.03312.06
4.4.40.0030.04312.06
4.4.30.0030.03312.06
4.4.20.0000.03712.06
4.4.10.0000.02712.06
4.4.00.0100.03712.06
4.3.110.0030.03312.06
4.3.100.0000.03712.06
4.3.90.0000.03712.06
4.3.80.0000.05712.06
4.3.70.0030.03012.06
4.3.60.0030.03012.06
4.3.50.0000.03712.06
4.3.40.0030.04712.06
4.3.30.0030.03312.06
4.3.20.0000.02012.06
4.3.10.0000.03712.06
4.3.00.0030.03312.06

preferences:
51.27 ms | 401 KiB | 5 Q