3v4l.org

run code in 300+ PHP versions simultaneously
<?php $t = '2343223A'; $t2 = '32423423'; echo substr($t, -1, 1); echo '<br >'; echo substr($t2, -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)
8.3.60.0120.00616.63
8.3.50.0120.01021.98
8.3.40.0130.00618.71
8.3.30.0150.00018.93
8.3.20.0060.00320.34
8.3.10.0110.00423.54
8.3.00.0100.00017.63
8.2.180.0120.00616.63
8.2.170.0030.01018.91
8.2.160.0110.00322.96
8.2.150.0000.00824.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0000.00819.23
8.2.110.0100.00022.07
8.2.100.0040.00719.40
8.2.90.0030.00619.22
8.2.80.0040.00418.04
8.2.70.0030.00617.63
8.2.60.0050.00217.93
8.2.50.0050.00318.07
8.2.40.0030.00618.22
8.2.30.0000.00718.04
8.2.20.0000.00817.60
8.2.10.0040.00417.87
8.2.00.0030.00518.16
8.1.280.0070.01025.92
8.1.270.0090.00620.32
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0030.00718.57
8.1.230.0040.00819.10
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00917.10
8.1.190.0060.00317.43
8.1.180.0050.00218.61
8.1.170.0040.00418.52
8.1.160.0000.00722.17
8.1.150.0040.00418.71
8.1.140.0040.00417.30
8.1.130.0030.00317.83
8.1.120.0040.00417.29
8.1.110.0040.00417.27
8.1.100.0020.00517.28
8.1.90.0000.00717.28
8.1.80.0040.00417.41
8.1.70.0000.00717.38
8.1.60.0000.00817.47
8.1.50.0000.00817.50
8.1.40.0050.00217.34
8.1.30.0050.00317.61
8.1.20.0040.00417.50
8.1.10.0000.00717.38
8.1.00.0040.00417.38
8.0.300.0080.00018.77
8.0.290.0070.00017.18
8.0.280.0030.00318.48
8.0.270.0030.00317.26
8.0.260.0000.00617.27
8.0.250.0000.00716.91
8.0.240.0040.00416.83
8.0.230.0000.00716.96
8.0.220.0030.00316.84
8.0.210.0040.00416.73
8.0.200.0000.00616.90
8.0.190.0050.00216.80
8.0.180.0040.00416.87
8.0.170.0000.00716.91
8.0.160.0030.00316.81
8.0.150.0000.00816.66
8.0.140.0000.00716.66
8.0.130.0050.00313.21
8.0.120.0050.00316.79
8.0.110.0040.00416.75
8.0.100.0070.00016.76
8.0.90.0080.00016.65
8.0.80.0090.01016.84
8.0.70.0050.00316.87
8.0.60.0000.00816.68
8.0.50.0040.00416.84
8.0.30.0160.00517.11
8.0.20.0110.00817.40
8.0.10.0000.00716.88
8.0.00.0120.00616.81
7.4.330.0000.00615.03
7.4.320.0000.00616.55
7.4.300.0000.00616.44
7.4.290.0030.00316.42
7.4.280.0050.00316.42
7.4.270.0000.00816.44
7.4.260.0000.00716.29
7.4.250.0040.00416.52
7.4.240.0020.00616.52
7.4.230.0030.00316.61
7.4.220.0000.01516.61
7.4.210.0070.00716.38
7.4.200.0030.00616.62
7.4.160.0030.01316.59
7.4.150.0060.01217.40
7.4.140.0120.00617.86
7.4.130.0040.01316.34
7.4.120.0100.00816.40
7.4.110.0110.01116.32
7.4.100.0060.01616.36
7.4.90.0070.01016.58
7.4.80.0030.01419.39
7.4.70.0080.01216.30
7.4.60.0100.00616.63
7.4.50.0040.00416.32
7.4.40.0140.00316.46
7.4.30.0070.01016.36
7.4.00.0070.00314.97
7.3.330.0030.00313.05
7.3.320.0000.00513.07
7.3.310.0080.00016.16
7.3.300.0070.00016.15
7.3.290.0040.01216.15
7.3.280.0070.00816.13
7.3.270.0140.00917.40
7.3.260.0090.01316.45
7.3.250.0080.01116.11
7.3.240.0090.01316.17
7.3.230.0120.00616.39
7.3.210.0100.00616.13
7.3.200.0090.01019.39
7.3.190.0160.00616.22
7.3.180.0100.00616.19
7.3.170.0060.01016.41
7.3.160.0060.00916.35
7.2.330.0070.01016.52
7.2.320.0030.01416.38
7.2.310.0070.01016.36
7.2.300.0130.00316.50
7.2.290.0070.01516.59
7.2.60.0070.00716.76
7.2.00.0070.00719.15
7.1.200.0040.00815.41
7.1.100.0040.01117.94
7.1.70.0000.00717.19
7.1.60.0110.00719.50
7.1.50.0090.00316.50
7.1.00.0070.07322.40
7.0.200.0200.00016.70
7.0.60.0070.04319.94
7.0.50.0070.05317.80
7.0.40.0200.07320.20
7.0.30.0300.04720.09
7.0.20.0300.03320.12
7.0.10.0030.04720.16
7.0.00.0100.08320.13
5.6.280.0070.07020.93
5.6.210.0000.04320.68
5.6.200.0030.09018.22
5.6.190.0070.09020.27
5.6.180.3370.04020.35
5.6.170.0170.04320.41
5.6.160.0030.05320.49
5.6.150.0070.07318.07
5.6.140.0100.07718.15
5.6.130.0070.06718.18
5.6.120.0100.04721.02
5.6.110.0200.07021.01
5.6.100.0030.04320.93
5.6.90.0070.08720.96
5.6.80.0200.06720.35
5.6.70.2500.03720.36
5.5.350.0230.06320.40
5.5.340.0070.04318.01
5.5.330.0130.05720.57
5.5.320.0300.03720.30
5.5.310.0330.07020.12
5.5.300.0030.07317.96
5.5.290.0130.06317.96
5.5.280.0030.04320.86
5.5.270.0130.07720.76
5.5.260.0030.07720.79
5.5.250.0030.09020.45
5.5.240.0170.08720.34
5.4.450.1230.05319.54
5.4.440.0930.04319.38
5.4.430.0530.04019.54
5.4.420.0030.06319.46
5.4.410.0070.05719.02
5.4.400.0070.05718.59
5.4.390.0200.05318.47
5.4.380.0070.06018.55
5.4.370.0200.04318.58
5.4.360.0000.06318.69
5.4.350.0200.04718.63
5.4.340.0100.05718.59
5.4.320.0170.07018.55
5.4.310.0070.06018.69
5.4.300.0030.06318.51
5.4.290.0170.04318.59
5.4.280.0170.04318.43
5.4.270.0170.05718.63
5.4.260.0070.05718.49
5.4.250.0170.05018.47
5.4.240.0200.06718.62
5.4.230.0130.05718.68
5.4.220.0130.05318.73
5.4.210.0130.07318.46
5.4.200.0230.05316.37
5.4.190.0130.05318.52
5.4.180.0100.05018.62
5.4.170.0130.05018.61
5.4.160.0070.06718.64
5.4.150.0230.03718.66
5.4.140.0100.05716.04
5.4.130.0030.06016.22
5.4.120.0100.06316.09
5.4.110.0100.07016.33
5.4.100.0130.06316.33
5.4.90.0100.06716.13
5.4.80.0130.04316.21
5.4.70.0230.04716.24
5.4.60.0030.05316.10
5.4.50.0070.05016.10
5.4.40.0130.04716.01
5.4.30.0070.05316.23
5.4.20.0100.05016.02
5.4.10.0130.04316.14
5.4.00.0070.05015.70
5.3.290.0000.06314.72
5.3.280.0100.05314.57
5.3.270.0100.05714.57
5.3.260.0100.05314.63
5.3.250.0130.04714.60
5.3.240.0130.06714.55
5.3.230.0130.06714.55
5.3.220.0100.05714.53
5.3.210.0300.04314.65
5.3.200.0170.06314.49
5.3.190.0100.06314.52
5.3.180.0200.04314.55
5.3.170.0130.05314.61
5.3.160.0030.07014.63
5.3.150.0200.05014.56
5.3.140.0070.06314.58
5.3.130.0230.04014.53
5.3.120.0070.05714.64
5.3.110.0170.06714.62
5.3.100.0100.05314.13
5.3.90.0070.05714.07
5.3.80.0100.06714.00
5.3.70.0170.06313.95
5.3.60.0000.06313.97
5.3.50.0230.06314.03
5.3.40.0100.05013.93
5.3.30.0170.04713.80
5.3.20.0200.06313.77
5.3.10.0100.06013.64
5.3.00.0100.07013.57
5.2.170.0100.04711.07
5.2.160.0170.04311.20
5.2.150.0200.04711.29
5.2.140.0100.05311.29
5.2.130.0070.05711.15
5.2.120.0200.04011.14
5.2.110.0070.05711.08
5.2.100.0030.05311.16
5.2.90.0100.05311.05
5.2.80.0170.04711.15
5.2.70.0100.05711.13
5.2.60.0200.04711.18
5.2.50.0070.04711.00
5.2.40.0100.04311.00
5.2.30.0100.04010.92
5.2.20.0100.05011.02
5.2.10.0070.05311.01
5.2.00.0070.05710.83
5.1.60.0130.04010.03
5.1.50.0030.04310.01
5.1.40.0070.0409.97
5.1.30.0130.04710.32
5.1.20.0100.05010.40
5.1.10.0030.05310.09
5.1.00.0030.05710.09
5.0.50.0100.0308.56
5.0.40.0070.0338.48
5.0.30.0030.0478.34
5.0.20.0030.0338.40
5.0.10.0070.0338.21
5.0.00.0030.0538.18
4.4.90.0100.0175.87
4.4.80.0000.0275.85
4.4.70.0070.0205.91
4.4.60.0100.0175.89
4.4.50.0000.0275.95
4.4.40.0030.0375.82
4.4.30.0070.0205.88
4.4.20.0030.0305.92
4.4.10.0030.0305.96
4.4.00.0030.0375.89
4.3.110.0100.0175.85
4.3.100.0000.0235.85
4.3.90.0000.0235.80
4.3.80.0070.0375.76
4.3.70.0030.0205.77
4.3.60.0070.0235.77
4.3.50.0130.0235.85
4.3.40.0030.0375.80
4.3.30.0030.0234.58
4.3.20.0030.0274.52
4.3.10.0100.0274.48
4.3.00.0030.01015.66

preferences:
57.72 ms | 401 KiB | 5 Q