3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); $a[] = 1; $a[] = 2; $a[] = 3; echo gettype(substr(234, 1, 1));

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)
8.3.60.0140.00718.55
8.3.50.0200.00222.09
8.3.40.0090.00618.77
8.3.30.0110.00418.72
8.3.20.0080.00018.71
8.3.10.0090.00020.54
8.3.00.0080.00021.83
8.2.180.0030.01416.38
8.2.170.0120.00922.96
8.2.160.0110.00320.28
8.2.150.0070.00024.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0040.00419.58
8.2.110.0060.00322.12
8.2.100.0120.00017.90
8.2.90.0000.00819.39
8.2.80.0030.00518.05
8.2.70.0030.00717.50
8.2.60.0040.00417.93
8.2.50.0030.00618.07
8.2.40.0030.00618.08
8.2.30.0040.00419.84
8.2.20.0040.00417.77
8.2.10.0040.00417.68
8.2.00.0050.00217.78
8.1.280.0090.00925.92
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0050.00228.09
8.1.240.0060.00320.89
8.1.230.0040.00721.04
8.1.220.0050.00318.77
8.1.210.0030.00718.96
8.1.200.0030.00617.35
8.1.190.0040.00417.51
8.1.180.0040.00418.10
8.1.170.0030.00518.91
8.1.160.0080.00018.91
8.1.150.0000.00818.46
8.1.140.0000.00717.34
8.1.130.0030.00317.86
8.1.120.0030.00317.51
8.1.110.0000.00817.42
8.1.100.0000.00717.47
8.1.90.0040.00417.42
8.1.80.0040.00417.44
8.1.70.0060.00017.31
8.1.60.0070.00017.50
8.1.50.0040.00417.48
8.1.40.0040.00417.57
8.1.30.0040.00417.60
8.1.20.0030.00617.46
8.1.10.0000.00717.48
8.1.00.0050.00517.38
8.0.300.0040.00419.82
8.0.290.0000.00716.63
8.0.280.0030.00318.49
8.0.270.0000.00717.12
8.0.260.0060.00016.82
8.0.250.0040.00416.91
8.0.240.0060.00316.97
8.0.230.0020.00716.75
8.0.220.0050.00316.70
8.0.210.0030.00316.70
8.0.200.0030.00316.89
8.0.190.0030.00316.87
8.0.180.0070.00016.84
8.0.170.0000.00916.72
8.0.160.0040.00416.84
8.0.150.0070.00316.93
8.0.140.0030.00616.80
8.0.130.0070.00213.34
8.0.120.0050.00316.80
8.0.110.0040.00416.73
8.0.100.0040.00416.78
8.0.90.0040.00416.91
8.0.80.0030.01616.78
8.0.70.0040.00416.84
8.0.60.0000.00816.99
8.0.50.0080.00016.77
8.0.30.0140.00517.04
8.0.20.0130.01017.40
8.0.10.0030.00517.11
8.0.00.0090.00916.79
7.4.330.0000.00514.83
7.4.320.0000.00716.50
7.4.300.0060.00016.52
7.4.290.0070.00016.54
7.4.280.0040.00416.54
7.4.270.0030.00316.50
7.4.260.0070.00013.22
7.4.250.0000.00816.45
7.4.240.0000.00716.59
7.4.230.0030.00316.59
7.4.220.0190.00816.64
7.4.210.0060.01116.58
7.4.200.0030.00316.66
7.4.190.0070.00016.35
7.4.160.0080.00816.54
7.4.150.0100.00617.40
7.4.140.0070.01217.86
7.4.130.0080.00916.49
7.4.120.0050.01316.40
7.4.110.0040.01416.53
7.4.100.0080.01416.52
7.4.90.0090.00916.54
7.4.80.0100.00719.04
7.4.70.0090.00916.35
7.4.60.0070.01416.51
7.4.50.0040.00416.30
7.4.40.0040.01122.27
7.4.30.0040.01116.52
7.4.00.0070.01014.91
7.3.330.0020.00212.95
7.3.320.0050.00012.91
7.3.310.0070.00016.06
7.3.300.0000.00716.23
7.3.290.0030.01016.16
7.3.280.0080.01116.17
7.3.270.0120.00617.40
7.3.260.0120.00818.24
7.3.250.0100.00716.23
7.3.240.0070.01116.43
7.3.230.0040.01616.45
7.3.210.0000.01816.49
7.3.200.0100.00719.39
7.3.190.0100.00616.50
7.3.180.0120.00416.26
7.3.170.0120.00416.44
7.3.160.0080.00816.38
7.3.120.0050.01114.89
7.3.110.0040.01014.74
7.3.100.0070.00914.66
7.3.90.0060.00714.74
7.3.80.0060.00714.60
7.3.70.0040.00614.80
7.3.60.0060.00814.79
7.3.50.0090.00714.73
7.3.40.0100.00414.71
7.3.30.0050.00914.75
7.3.20.0060.00716.67
7.3.10.0070.00816.66
7.3.00.0060.00816.55
7.2.330.0000.01716.40
7.2.320.0060.01016.41
7.2.310.0100.01216.65
7.2.300.0070.01716.43
7.2.290.0030.01316.46
7.2.250.0060.01114.83
7.2.240.0080.01015.00
7.2.230.0100.00414.93
7.2.220.0050.00915.04
7.2.210.0060.00714.96
7.2.200.0060.00814.94
7.2.190.0040.01114.85
7.2.180.0050.00914.92
7.2.170.0070.00714.99
7.2.160.0000.01415.05
7.2.150.0040.00816.97
7.2.140.0000.00916.99
7.2.130.0030.00916.91
7.2.120.0070.00716.91
7.2.110.0030.01216.93
7.2.100.0000.01416.77
7.2.90.0040.00816.95
7.2.80.0070.01116.82
7.2.70.0070.00416.91
7.2.60.0100.00316.73
7.2.50.0070.00717.02
7.2.40.0030.01516.87
7.2.30.0040.01116.98
7.2.20.0090.00616.99
7.2.10.0040.01116.64
7.2.00.0080.00818.09
7.1.330.0060.00915.61
7.1.320.0070.00415.53
7.1.310.0070.00715.66
7.1.300.0040.00815.69
7.1.290.0090.00615.52
7.1.280.0060.00515.48
7.1.270.0040.00715.46
7.1.260.0120.00715.52
7.1.250.0030.00815.68
7.1.100.0000.01218.11
7.1.70.0070.00017.10
7.1.60.0110.01419.40
7.1.50.0070.00416.75
7.1.00.0030.06722.44
7.0.200.0030.00616.88
7.0.140.0030.07322.00
7.0.60.0070.04319.82
7.0.50.0100.07717.79
7.0.40.0070.06720.40
7.0.30.0200.04020.11
7.0.20.0170.05320.09
7.0.10.0030.04320.33
7.0.00.0030.04720.09
5.6.280.0030.07321.16
5.6.210.0100.07020.66
5.6.200.0030.04018.10
5.6.190.0100.08720.33
5.6.180.0170.04320.56
5.6.170.0330.05320.54
5.6.160.0070.04020.54
5.6.150.0030.08718.12
5.6.140.0070.04318.15
5.6.130.0070.06718.09
5.6.120.0030.09021.08
5.6.110.0100.03320.96
5.6.100.0130.03320.93
5.6.90.0100.04720.96
5.6.80.0170.06320.28
5.5.350.0230.06720.31
5.5.340.0000.04018.02
5.5.330.0100.03720.40
5.5.320.0270.04720.25
5.5.310.0300.05020.26
5.5.300.0030.06717.91
5.5.290.0230.06717.92
5.5.280.0100.06720.67
5.5.270.0130.07720.86
5.5.260.0030.05020.86
5.5.250.0070.07320.68
5.5.240.0030.07720.18
5.4.450.3530.03719.48
5.4.440.3300.04019.53
5.4.430.3170.04319.57
5.4.420.4100.04319.40
5.4.410.3600.03019.36
5.4.400.3570.04019.13
5.4.390.3130.02718.78
5.4.380.3170.03719.09
5.4.370.3500.03718.90
5.4.360.3330.04319.08
5.4.350.3070.04019.09
5.4.340.3270.04319.13
5.4.320.3370.04319.09
5.4.310.2970.04319.13
5.4.300.3070.04019.24
5.4.290.3270.04719.08
5.4.280.3300.03718.93
5.4.270.3370.04319.08
5.4.260.3430.03318.91
5.4.250.3230.03318.88
5.4.240.3330.04019.07
5.4.230.3500.04318.77
5.4.220.3400.03719.17
5.4.210.3170.04019.23
5.4.200.2630.04319.05
5.4.190.1500.03718.76
5.4.180.2070.04319.20
5.4.170.2600.04019.21
5.4.160.2870.03719.11
5.4.150.1670.03719.07
5.4.140.2800.03316.29
5.4.130.3300.04316.36
5.4.120.2830.03316.25
5.4.110.2430.03016.41
5.4.100.2500.03716.41
5.4.90.3170.03016.41
5.4.80.2730.03716.41
5.4.70.2930.03016.07
5.4.60.3330.04016.45
5.4.50.3270.03316.40
5.4.40.3200.03716.19
5.4.30.2830.03016.43
5.4.20.3700.03316.36
5.4.10.3300.04316.04
5.4.00.3300.03315.71
5.3.290.3230.03714.61
5.3.280.3830.04314.61
5.3.270.3330.02714.65
5.3.260.3170.04314.59
5.3.250.3200.03714.47
5.3.240.4500.03714.61
5.3.230.4070.05314.61
5.3.220.3370.04014.47
5.3.210.3100.03314.40
5.3.200.3500.02714.40
5.3.190.3400.04314.46
5.3.180.3470.03314.50
5.3.170.3300.04314.50
5.3.160.3530.03014.40
5.3.150.3370.04314.51
5.3.140.3470.03014.54
5.3.130.3400.04014.55
5.3.120.3430.03314.56
5.3.110.3600.03714.63
5.3.100.3400.04313.98
5.3.90.3670.04313.85
5.3.80.3400.03714.00
5.3.70.3130.03713.96
5.3.60.3400.03713.95
5.3.50.3330.03713.96
5.3.40.3470.03013.90
5.3.30.3470.04013.74
5.3.20.3370.03313.48
5.3.10.3500.03313.60
5.3.00.3430.03013.52
5.2.170.2970.02711.23
5.2.160.2900.03311.05
5.2.150.2870.03011.04
5.2.140.3030.03011.30
5.2.130.2770.03011.14
5.2.120.2970.03011.04
5.2.110.2800.02310.94
5.2.100.3000.03010.95
5.2.90.2930.03011.04
5.2.80.2730.02711.03
5.2.70.2770.02311.14
5.2.60.2730.03010.88
5.2.50.2730.03011.11
5.2.40.2270.02710.93
5.2.30.2630.03711.02
5.2.20.2300.02310.81
5.2.10.3000.02310.82
5.2.00.2300.03010.86
5.1.60.2170.0309.91
5.1.50.2400.0279.91
5.1.40.2400.02710.13
5.1.30.1870.02710.30
5.1.20.2300.02710.57
5.1.10.2130.0239.99
5.1.00.2130.0239.96
5.0.50.1030.0238.44
5.0.40.1100.0178.38
5.0.30.1300.0308.15
5.0.20.1330.0238.20
5.0.10.0500.0208.06
5.0.00.0000.0378.05
4.4.90.0000.0136.75
4.4.80.0000.0276.75
4.4.70.0030.0136.75
4.4.60.0030.0136.75
4.4.50.0000.0176.75
4.4.40.0030.0236.75
4.4.30.0000.0306.75
4.4.20.0030.0136.75
4.4.10.0100.0076.75
4.4.00.1030.0276.75
4.3.110.1230.0136.75
4.3.100.1030.0176.75
4.3.90.1070.0136.75
4.3.80.1300.0276.75
4.3.70.1400.0106.75
4.3.60.1070.0136.75
4.3.50.1030.0176.75
4.3.40.1270.0306.75
4.3.30.0570.0176.75
4.3.20.0570.0136.75
4.3.10.0570.0206.75
4.3.00.0600.0176.75

preferences:
44.39 ms | 401 KiB | 5 Q