3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dero = '12345678901234567890123456789012345678901234567890123456789012345678901234567890'; echo substr($dero,0,64);

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)
8.3.40.0110.00318.46
8.3.30.0160.00318.54
8.3.20.0040.00418.44
8.3.10.0090.00020.41
8.3.00.0110.00719.11
8.2.170.0070.01422.96
8.2.160.0130.00719.47
8.2.150.0130.00624.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00420.27
8.2.110.0060.00321.04
8.2.100.0080.00417.78
8.2.90.0080.00321.08
8.2.80.0050.00319.21
8.2.70.0040.00417.25
8.2.60.0040.00418.04
8.2.50.0000.00918.07
8.2.40.0000.00818.16
8.2.30.0050.00217.94
8.2.20.0040.00417.65
8.2.10.0050.00217.57
8.2.00.0040.00417.64
8.1.270.0080.00024.66
8.1.260.0110.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00423.82
8.1.230.0040.00720.82
8.1.220.0080.00017.74
8.1.210.0040.00418.85
8.1.200.0040.00417.13
8.1.190.0000.00917.29
8.1.180.0000.00918.10
8.1.170.0030.00618.67
8.1.160.0030.00518.76
8.1.150.0040.00418.49
8.1.140.0040.00417.45
8.1.130.0030.00317.82
8.1.120.0000.00717.46
8.1.110.0030.00517.33
8.1.100.0040.00417.38
8.1.90.0030.00417.25
8.1.80.0000.00717.33
8.1.70.0040.00417.37
8.1.60.0040.00417.41
8.1.50.0000.00817.42
8.1.40.0040.00417.47
8.1.30.0040.00417.56
8.1.20.0040.00417.62
8.1.10.0030.00517.58
8.1.00.0000.00817.32
8.0.300.0030.00519.89
8.0.290.0040.00416.62
8.0.280.0030.00518.44
8.0.270.0030.00317.34
8.0.260.0030.00316.72
8.0.250.0080.00016.98
8.0.240.0000.00717.00
8.0.230.0040.00416.86
8.0.220.0000.00716.70
8.0.210.0080.00016.80
8.0.200.0040.00416.75
8.0.190.0000.00716.78
8.0.180.0050.00316.86
8.0.170.0000.00816.81
8.0.160.0070.00016.79
8.0.150.0040.00416.78
8.0.140.0090.00016.76
8.0.130.0000.00613.32
8.0.120.0070.00016.67
8.0.110.0040.00416.82
8.0.100.0000.00716.65
8.0.90.0000.00716.77
8.0.80.0090.00616.89
8.0.70.0000.00716.84
8.0.60.0040.00416.82
8.0.50.0000.00816.71
8.0.30.0120.00817.00
8.0.20.0100.00817.02
8.0.10.0040.00417.05
8.0.00.0120.00416.84
7.4.330.0030.00312.94
7.4.320.0000.00716.56
7.4.300.0030.00316.36
7.4.290.0040.00416.42
7.4.280.0040.00416.43
7.4.270.0030.00316.59
7.4.260.0000.00513.18
7.4.250.0050.00316.48
7.4.240.0070.00016.41
7.4.230.0070.00016.54
7.4.220.0070.01016.38
7.4.210.0080.00716.49
7.4.200.0030.00316.52
7.4.190.0000.00716.63
7.4.160.0100.00616.53
7.4.150.0030.01416.53
7.4.140.0130.00516.50
7.4.130.0100.00816.51
7.4.120.0050.01616.50
7.4.110.0110.00716.45
7.4.100.0030.01316.55
7.4.90.0110.00816.48
7.4.80.0130.00619.39
7.4.70.0110.01116.27
7.4.60.0070.01116.34
7.4.50.0080.00016.43
7.4.40.0070.00716.32
7.4.30.0070.01016.42
7.4.00.0000.01515.09
7.3.330.0030.00313.03
7.3.320.0000.00512.89
7.3.310.0000.00716.11
7.3.300.0030.00316.22
7.3.290.0080.00616.09
7.3.280.0130.00916.17
7.3.270.0060.01316.14
7.3.260.0140.00316.41
7.3.250.0080.00916.21
7.3.240.0140.00316.34
7.3.230.0040.01216.17
7.3.210.0070.01016.30
7.3.200.0090.00616.50
7.3.190.0100.00716.13
7.3.180.0100.01016.20
7.3.170.0100.01016.26
7.3.160.0030.01316.23
7.3.120.0000.01014.52
7.3.10.0130.00816.14
7.3.00.0110.00615.92
7.2.330.0040.01616.37
7.2.320.0050.01316.21
7.2.310.0120.01216.57
7.2.300.0100.00616.60
7.2.290.0130.00316.29
7.2.130.0090.00416.26
7.2.120.0120.00416.41
7.2.110.0070.01016.54
7.2.100.0210.00016.33
7.2.90.0070.01016.39
7.2.80.0100.00716.33
7.2.70.0090.00616.44
7.2.60.0170.01316.75
7.2.50.0100.00716.04
7.2.40.0140.01316.41
7.2.30.0120.00616.62
7.2.20.0190.01316.39
7.2.10.0150.01516.51
7.2.00.0110.00717.64
7.1.250.0070.00715.49
7.1.100.0060.00918.03
7.1.70.0070.00316.91
7.1.60.0070.01419.40
7.1.50.0040.00816.93
7.1.00.0070.04022.28
7.0.200.0100.00016.83
7.0.140.0070.07321.92
7.0.120.0070.07022.15
7.0.60.0100.07019.96
7.0.50.0100.07017.91
7.0.40.0070.09020.19
7.0.30.0200.08720.03
7.0.20.0230.03720.09
7.0.10.0270.03720.00
7.0.00.0070.03720.21
5.6.280.0070.06721.06
5.6.210.0030.05720.50
5.6.200.0070.05318.12
5.6.190.0030.04720.61
5.6.180.0300.08320.77
5.6.170.0270.03720.54
5.6.160.0070.08720.51
5.6.150.0100.04318.21
5.6.140.0070.07718.23
5.6.130.0070.08018.16
5.6.120.0000.04721.14
5.6.110.0170.07020.95
5.6.100.0030.08020.93
5.6.90.0130.03320.98
5.6.80.0030.04020.37
5.6.70.0300.06720.49
5.5.350.0230.06720.51
5.5.340.0030.04317.91
5.5.330.0000.04720.47
5.5.320.0200.07720.15
5.5.310.0370.06720.26
5.5.300.0030.07017.99
5.5.290.0130.03017.91
5.5.280.0030.04320.75
5.5.270.0130.07720.78
5.5.260.0030.09020.96
5.5.250.0030.07720.61
5.5.240.0100.06720.27
5.4.450.0000.04319.11
5.4.440.0100.03319.50
5.4.430.0000.05319.52
5.4.420.0000.04019.26
5.4.410.0030.04018.95
5.4.400.0030.03719.12
5.4.390.0000.04018.79
5.4.380.0030.03719.13
5.4.370.0130.03019.18
5.4.360.0000.04019.07
5.4.350.0030.04018.87
5.4.340.0000.04019.12
5.4.320.0000.04018.92
5.4.310.0070.03319.16
5.4.300.0030.04719.18
5.4.290.0030.03719.00
5.4.280.0030.03718.80
5.4.270.0130.06718.92
5.4.260.0030.04319.08
5.4.250.0030.07718.91
5.4.240.0070.07719.08
5.4.230.0030.07018.78
5.4.220.0030.09019.16
5.4.210.0000.08318.80
5.4.200.0100.03718.80
5.4.190.0000.05718.91
5.4.180.0100.05019.07
5.4.170.0100.04718.78
5.4.160.0000.05019.09
5.4.150.0170.07019.15
5.4.140.0170.06716.29
5.4.130.0100.07316.21
5.4.120.0130.06716.19
5.4.110.0070.07716.25
5.4.100.0070.07316.36
5.4.90.0100.07316.23
5.4.80.0100.07716.27
5.4.70.0070.07316.35
5.4.60.0030.06716.21
5.4.50.0030.07316.36
5.4.40.0100.07316.38
5.4.30.0000.05016.31
5.4.20.0070.06716.58
5.4.10.0000.05716.26
5.4.00.0100.06315.64
5.3.290.0030.03714.48
5.3.280.0130.07014.52
5.3.270.0070.07714.39
5.3.260.0070.04314.48
5.3.250.0030.06714.50
5.3.240.0030.05314.52
5.3.230.0000.06014.49
5.3.220.0100.03314.65
5.3.210.0100.07714.49
5.3.200.0170.06014.35
5.3.190.0030.07314.50
5.3.180.0100.04314.50
5.3.170.0030.04714.46
5.3.160.0070.03314.37
5.3.150.0030.04014.49
5.3.140.0070.06014.57
5.3.130.0030.03714.48
5.3.120.0030.07714.47
5.3.110.0170.06314.34
5.3.100.0070.06013.97
5.3.90.0130.07013.82
5.3.80.0100.03014.11
5.3.70.0070.07313.99
5.3.60.0070.07013.96
5.3.50.0070.04013.89
5.3.40.0000.05013.76
5.3.30.0070.03313.86
5.3.20.0130.06313.66
5.3.10.0070.04013.58
5.3.00.0030.04713.59
5.2.170.0000.03711.13
5.2.160.0030.04711.22
5.2.150.0030.03711.00
5.2.140.0030.06310.99
5.2.130.0070.06011.08
5.2.120.0030.04711.03
5.2.110.0030.06311.10
5.2.100.0130.02011.09
5.2.90.0100.05311.07
5.2.80.0070.05710.94
5.2.70.0070.06011.11
5.2.60.0070.05010.90
5.2.50.0030.05310.86
5.2.40.0000.04010.98
5.2.30.0070.03710.87
5.2.20.0070.06010.94
5.2.10.0070.03310.90
5.2.00.0000.05010.77
5.1.60.0000.03310.00
5.1.50.0000.0579.89
5.1.40.0030.02710.02
5.1.30.0030.02310.19
5.1.20.0070.05310.30
5.1.10.0030.02710.04
5.1.00.0070.04710.05
5.0.50.0000.0438.69
5.0.40.0000.0478.31
5.0.30.0030.0538.26
5.0.20.0070.0378.26
5.0.10.0000.0238.14
5.0.00.0000.0338.15
4.4.90.0070.0307.63
4.4.80.0030.0377.63
4.4.70.0000.0377.63
4.4.60.0000.0237.63
4.4.50.0000.0277.63
4.4.40.0000.0477.63
4.4.30.0100.0207.63
4.4.20.0000.0177.63
4.4.10.0070.0207.63
4.4.00.0030.0537.63
4.3.110.0070.0207.63
4.3.100.0070.0137.63
4.3.90.0070.0177.63
4.3.80.0030.0477.63
4.3.70.0000.0337.63
4.3.60.0000.0237.63
4.3.50.0100.0277.63
4.3.40.0000.0577.63
4.3.30.0030.0277.63
4.3.20.0000.0407.63
4.3.10.0030.0177.63
4.3.00.0000.0337.63

preferences:
46.91 ms | 400 KiB | 5 Q