3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr('AW: Blubb', 2,1));

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)
8.3.60.0140.00016.50
8.3.50.0040.01317.37
8.3.40.0070.00718.68
8.3.30.0120.00318.59
8.3.20.0080.00018.61
8.3.10.0060.00318.64
8.3.00.0030.00619.38
8.2.180.0070.01016.32
8.2.170.0070.00722.96
8.2.160.0080.00820.93
8.2.150.0000.00824.18
8.2.140.0040.01524.66
8.2.130.0100.00726.16
8.2.120.0140.00420.63
8.2.110.0030.00620.93
8.2.100.0080.00417.78
8.2.90.0040.00419.17
8.2.80.0000.00819.46
8.2.70.0000.00917.50
8.2.60.0080.00017.55
8.2.50.0030.00618.07
8.2.40.0040.00417.91
8.2.30.0040.00417.84
8.2.20.0030.00617.51
8.2.10.0040.00417.55
8.2.00.0020.00517.60
8.1.280.0040.01125.92
8.1.270.0080.00024.66
8.1.260.0180.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00422.36
8.1.230.0070.00320.99
8.1.220.0030.00617.74
8.1.210.0040.00418.91
8.1.200.0040.00417.10
8.1.190.0070.00017.29
8.1.180.0000.00818.10
8.1.170.0000.00818.80
8.1.160.0040.00418.72
8.1.150.0040.00418.57
8.1.140.0030.00617.33
8.1.130.0030.00317.77
8.1.120.0040.00417.23
8.1.110.0000.00817.34
8.1.100.0050.00217.18
8.1.90.0040.00417.23
8.1.80.0070.00017.34
8.1.70.0000.00817.30
8.1.60.0000.00917.45
8.1.50.0000.00817.34
8.1.40.0000.00817.28
8.1.30.0060.00317.45
8.1.20.0000.00717.56
8.1.10.0040.00417.34
8.1.00.0040.00417.30
8.0.300.0040.00419.69
8.0.290.0060.00316.63
8.0.280.0030.00418.33
8.0.270.0000.00717.13
8.0.260.0000.00716.74
8.0.250.0040.00416.74
8.0.240.0000.00716.80
8.0.230.0040.00416.84
8.0.220.0000.00716.75
8.0.210.0040.00416.83
8.0.200.0000.00716.89
8.0.190.0040.00416.80
8.0.180.0120.00016.75
8.0.170.0030.00416.68
8.0.160.0000.00816.75
8.0.150.0000.00816.70
8.0.140.0050.00316.62
8.0.130.0070.00013.18
8.0.120.0040.00416.73
8.0.110.0000.00816.75
8.0.100.0000.00716.66
8.0.90.0040.00416.77
8.0.80.0090.00616.72
8.0.70.0050.00316.55
8.0.60.0040.00416.64
8.0.50.0000.00716.65
8.0.30.0120.00617.11
8.0.20.0080.00916.84
8.0.10.0030.00316.93
8.0.00.0080.00916.66
7.4.330.0000.00512.84
7.4.320.0000.00616.36
7.4.300.0070.00016.47
7.4.290.0000.00916.36
7.4.280.0030.00616.46
7.4.270.0000.00716.32
7.4.260.0000.00513.11
7.4.250.0000.00716.36
7.4.240.0040.00416.45
7.4.230.0040.00416.41
7.4.220.0140.00416.36
7.4.210.0070.00816.45
7.4.200.0070.00016.40
7.4.190.0030.00316.23
7.4.160.0070.01016.21
7.4.150.0110.00816.32
7.4.140.0100.00916.32
7.4.130.0050.01116.35
7.4.120.0110.00816.23
7.4.110.0000.01716.51
7.4.100.0110.00716.50
7.4.90.0070.01116.21
7.4.80.0170.00319.39
7.4.70.0130.00616.36
7.4.60.0090.00916.36
7.4.50.0130.00016.44
7.4.40.0060.00916.13
7.4.30.0130.00316.33
7.4.00.0100.00714.84
7.3.330.0050.00212.98
7.3.320.0000.00612.89
7.3.310.0030.00316.20
7.3.300.0000.00716.12
7.3.290.0060.01316.11
7.3.280.0110.00916.18
7.3.270.0070.01016.33
7.3.260.0100.00716.41
7.3.250.0060.01216.17
7.3.240.0090.01216.20
7.3.230.0030.01316.45
7.3.210.0130.00416.33
7.3.200.0130.00316.37
7.3.190.0120.00916.48
7.3.180.0060.00916.13
7.3.170.0000.01616.24
7.3.160.0000.01516.35
7.3.120.0110.00614.64
7.3.110.0030.00714.55
7.3.100.0060.01314.27
7.3.90.0080.00314.64
7.3.80.0040.00414.77
7.3.70.0070.00714.48
7.3.60.0030.01214.61
7.3.50.0090.00014.71
7.3.40.0100.00714.59
7.3.30.0000.01214.56
7.3.20.0060.00916.44
7.3.10.0080.00416.46
7.3.00.0030.01316.33
7.2.330.0130.00316.42
7.2.320.0060.01616.45
7.2.310.0110.01216.14
7.2.300.0060.00916.54
7.2.290.0160.00616.35
7.2.250.0070.01114.94
7.2.240.0070.01314.78
7.2.230.0120.00314.87
7.2.220.0000.01214.86
7.2.210.0080.00714.97
7.2.200.0030.00614.61
7.2.190.0030.00614.66
7.2.180.0060.00914.66
7.2.170.0000.01814.98
7.2.60.0090.00616.84
7.2.00.0070.01419.13
7.1.330.0070.00715.59
7.1.320.0000.01315.74
7.1.310.0050.00315.61
7.1.300.0090.00015.61
7.1.290.0130.00315.62
7.1.280.0090.00315.70
7.1.270.0040.00815.30
7.1.260.0070.00315.63
7.1.200.0060.00615.67
7.1.100.0060.00618.08
7.1.70.0000.00716.68
7.1.60.0070.01619.40
7.1.50.0110.01416.89
7.1.00.0100.05722.45
7.0.200.0280.00714.47
7.0.140.0070.06722.18
7.0.120.0070.03022.15
7.0.60.0100.08019.93
7.0.50.0000.04717.89
7.0.40.0030.04320.07
7.0.30.0200.05720.05
7.0.20.0300.08020.12
7.0.10.0200.04720.13
7.0.00.0000.09020.01
5.6.280.0000.07321.01
5.6.210.0000.04320.60
5.6.200.0130.07718.23
5.6.190.0070.04720.53
5.6.180.0130.07320.77
5.6.170.0270.07320.62
5.6.160.0100.07320.40
5.6.150.0100.05018.15
5.6.140.0100.04018.11
5.6.130.0030.04718.18
5.6.120.0030.04021.03
5.6.110.0100.08020.98
5.6.100.0030.09321.10
5.6.90.0070.07021.00
5.6.80.0200.03720.37
5.6.70.0300.05720.35
5.5.350.0070.06720.40
5.5.340.0000.04017.95
5.5.330.0030.04320.40
5.5.320.0330.08320.26
5.5.310.0170.04720.34
5.5.300.0030.09017.97
5.5.290.0030.04317.89
5.5.280.0030.09320.79
5.5.270.0030.08320.75
5.5.260.0100.06720.83
5.5.250.0100.07320.70
5.5.240.0100.06320.26
5.4.450.3430.04019.26
5.4.440.3530.04019.42
5.4.430.3200.04019.42
5.4.420.3530.03319.48
5.4.410.3500.03318.98
5.4.400.3370.03719.15
5.4.390.3800.04319.21
5.4.380.3470.04719.25
5.4.370.3330.04319.25
5.4.360.3470.03719.21
5.4.350.3700.04319.09
5.4.340.3470.04018.91
5.4.320.3470.04319.22
5.4.310.3630.02318.93
5.4.300.3000.03319.09
5.4.290.2800.03718.78
5.4.280.3230.04019.08
5.4.270.3370.03319.10
5.4.260.3900.03719.23
5.4.250.2970.03719.14
5.4.240.2970.03719.05
5.4.230.3000.03019.12
5.4.220.3230.03719.23
5.4.210.3300.03018.87
5.4.200.3470.02319.08
5.4.190.2970.03718.78
5.4.180.3200.03719.07
5.4.170.3300.03019.07
5.4.160.2800.03719.19
5.4.150.4500.04318.91
5.4.140.3300.04316.35
5.4.130.3770.03716.13
5.4.120.3300.03716.43
5.4.110.3570.03016.39
5.4.100.3630.04016.48
5.4.90.3570.03016.41
5.4.80.3100.04016.44
5.4.70.3470.03716.18
5.4.60.3800.03016.20
5.4.50.3530.03316.32
5.4.40.3500.03716.45
5.4.30.3670.03716.40
5.4.20.3870.04016.46
5.4.10.3470.03716.19
5.4.00.3370.03715.98
5.3.290.3400.04314.71
5.3.280.3470.03714.45
5.3.270.3030.04014.58
5.3.260.3400.03314.43
5.3.250.3400.04014.47
5.3.240.3530.03714.46
5.3.230.3970.04014.43
5.3.220.3600.03314.65
5.3.210.3170.04314.54
5.3.200.3530.03014.51
5.3.190.3500.04314.54
5.3.180.3400.04014.49
5.3.170.3430.03714.40
5.3.160.3500.03714.65
5.3.150.4330.03714.51
5.3.140.3470.04014.55
5.3.130.3700.04714.38
5.3.120.3330.04714.65
5.3.110.3430.04714.38
5.3.100.3500.04013.98
5.3.90.3500.03314.10
5.3.80.3500.03313.81
5.3.70.3700.03713.99
5.3.60.3500.03713.95
5.3.50.3430.04013.89
5.3.40.3500.03713.79
5.3.30.3330.03013.95
5.3.20.3670.03713.46
5.3.10.3530.03313.61
5.3.00.3530.04313.54
5.2.170.2370.03010.98
5.2.160.3070.02311.02
5.2.150.2930.02711.07
5.2.140.3000.02710.99
5.2.130.2970.02710.94
5.2.120.2770.03011.27
5.2.110.2630.03311.00
5.2.100.2630.03011.03
5.2.90.2630.03010.94
5.2.80.2970.03011.00
5.2.70.2670.03010.98
5.2.60.2870.03010.98
5.2.50.2670.03310.95
5.2.40.2370.02711.00
5.2.30.2330.03311.01
5.2.20.2400.03010.79
5.2.10.2330.02710.79
5.2.00.1970.03010.68
5.1.60.2200.0309.96
5.1.50.2100.0239.88
5.1.40.2570.0239.95
5.1.30.2400.02310.37
5.1.20.2130.02710.27
5.1.10.2130.02310.14
5.1.00.2370.02710.18
5.0.50.1200.0238.59
5.0.40.1270.0278.39
5.0.30.1330.0308.30
5.0.20.1100.0208.10
5.0.10.1130.0238.05
5.0.00.1130.0308.07
4.4.90.1100.0175.85
4.4.80.1230.0135.87
4.4.70.1230.0175.78
4.4.60.1100.0135.81
4.4.50.1130.0175.77
4.4.40.1270.0275.82
4.4.30.1070.0135.79
4.4.20.1100.0175.85
4.4.10.1070.0175.85
4.4.00.1500.0235.91
4.3.110.1370.0135.72
4.3.100.1430.0205.81
4.3.90.1570.0205.82
4.3.80.1670.0235.77
4.3.70.1600.0205.74
4.3.60.1330.0175.77
4.3.50.1670.0105.68
4.3.40.1370.0205.68
4.3.30.0830.0235.16
4.3.20.0800.0235.16
4.3.10.0870.0205.16
4.3.00.0870.0275.16

preferences:
50.56 ms | 400 KiB | 5 Q