3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mystring = 'abcdbbbbbfbef'; echo strrpos($mystring, "s").">>"; echo Substr($mystring, 0, strrpos($mystring, "s"));

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)
8.3.60.0170.00016.47
8.3.50.0170.00317.99
8.3.40.0140.00718.46
8.3.30.0140.00019.15
8.3.20.0140.00020.31
8.3.10.0080.00023.69
8.3.00.0040.00419.08
8.2.180.0080.00818.13
8.2.170.0110.01122.96
8.2.160.0070.00720.39
8.2.150.0070.00724.18
8.2.140.0000.00824.66
8.2.130.0110.00726.16
8.2.120.0050.00319.23
8.2.110.0060.00322.25
8.2.100.0060.00617.78
8.2.90.0050.00319.23
8.2.80.0030.00618.05
8.2.70.0000.00817.63
8.2.60.0040.00417.80
8.2.50.0000.00818.07
8.2.40.0030.00518.16
8.2.30.0040.00418.11
8.2.20.0040.00417.68
8.2.10.0030.00618.05
8.2.00.0060.00317.52
8.1.270.0060.00323.97
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0040.00423.82
8.1.230.0040.00819.10
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0000.00917.30
8.1.180.0050.00318.10
8.1.170.0070.00718.64
8.1.160.0040.00421.99
8.1.150.0000.00818.66
8.1.140.0040.00417.34
8.1.130.0030.00317.89
8.1.120.0050.00217.38
8.1.110.0000.00717.47
8.1.100.0040.00417.29
8.1.90.0000.00817.40
8.1.80.0030.00317.46
8.1.70.0030.00317.38
8.1.60.0120.00017.61
8.1.50.0000.00917.41
8.1.40.0080.00017.55
8.1.30.0000.00817.63
8.1.20.0000.00717.56
8.1.10.0040.00417.52
8.1.00.0040.00417.34
8.0.300.0000.00718.77
8.0.290.0000.00717.18
8.0.280.0070.00018.45
8.0.270.0030.00317.13
8.0.260.0070.00018.45
8.0.250.0000.00716.93
8.0.240.0070.00016.83
8.0.230.0060.00316.96
8.0.220.0000.00616.77
8.0.210.0070.00016.89
8.0.200.0000.00616.99
8.0.190.0070.00016.82
8.0.180.0040.00416.87
8.0.170.0040.00416.92
8.0.160.0040.00316.77
8.0.150.0030.00316.88
8.0.140.0050.00516.77
8.0.130.0060.00013.31
8.0.120.0000.00816.87
8.0.110.0040.00416.91
8.0.100.0040.00416.84
8.0.90.0030.00316.86
8.0.80.0070.00716.93
8.0.70.0050.00216.91
8.0.60.0000.00816.61
8.0.50.0070.00016.66
8.0.30.0140.00516.95
8.0.20.0040.01517.40
8.0.10.0090.00016.78
8.0.00.0090.00916.72
7.4.330.0020.00215.00
7.4.320.0040.00416.39
7.4.300.0060.00016.58
7.4.290.0000.00716.57
7.4.280.0000.00716.43
7.4.270.0000.00716.46
7.4.260.0000.00716.58
7.4.250.0040.00416.41
7.4.240.0020.00516.55
7.4.230.0000.00816.19
7.4.220.0060.01216.43
7.4.210.0080.00716.43
7.4.200.0000.00716.39
7.4.190.0000.00716.48
7.4.160.0140.01016.49
7.4.150.0090.00917.40
7.4.140.0120.00517.86
7.4.130.0170.00616.29
7.4.120.0100.01016.42
7.4.110.0120.00616.57
7.4.100.0070.01016.53
7.4.90.0040.01216.47
7.4.80.0070.01119.39
7.4.70.0060.01516.49
7.4.60.0090.01216.50
7.4.50.0000.00816.35
7.4.40.0110.00422.77
7.4.30.0070.00816.50
7.4.00.0120.00415.06
7.3.330.0050.00013.07
7.3.320.0060.00013.06
7.3.310.0030.00316.29
7.3.300.0000.00616.22
7.3.290.0130.00616.25
7.3.280.0090.01016.23
7.3.270.0090.00917.40
7.3.260.0070.01016.49
7.3.250.0090.00916.40
7.3.240.0090.00916.43
7.3.230.0040.01516.63
7.3.210.0060.01116.26
7.3.200.0080.00819.39
7.3.190.0090.01016.39
7.3.180.0080.00816.32
7.3.170.0070.01416.46
7.3.160.0090.00616.39
7.3.120.0070.00714.68
7.2.330.0090.00916.71
7.2.320.0000.01716.50
7.2.310.0110.00816.65
7.2.300.0030.01216.71
7.2.290.0100.00716.66
7.1.200.0070.00715.86
7.1.100.0030.00718.04
7.1.70.0000.00717.25
7.1.60.0090.01219.33
7.1.50.0090.01516.86
7.1.00.0030.07722.34
7.0.200.0000.00716.71
7.0.140.0000.07721.99
7.0.100.0170.08020.04
7.0.90.0000.05719.93
7.0.80.0270.07719.88
7.0.70.0070.07320.01
7.0.60.0270.07719.96
7.0.50.0070.08320.26
7.0.40.0030.05020.04
7.0.30.0070.07720.11
7.0.20.0130.04320.17
7.0.10.0070.07320.12
7.0.00.0070.08320.14
5.6.280.0030.09320.99
5.6.250.0130.07320.66
5.6.240.0070.07020.68
5.6.230.0070.08020.71
5.6.220.0100.03720.51
5.6.210.0100.07320.73
5.6.200.0100.08321.07
5.6.190.0130.08021.07
5.6.180.0130.05721.03
5.6.170.0070.09020.99
5.6.160.0100.07721.04
5.6.150.0100.08320.97
5.6.140.0030.07721.01
5.6.130.0170.07321.11
5.6.120.0130.08321.13
5.6.110.0100.07721.02
5.6.100.0070.07321.01
5.6.90.0100.08020.89
5.6.80.0100.07020.33
5.6.70.0100.06020.31
5.6.60.0000.08720.39
5.6.50.0170.07320.46
5.6.40.0000.09020.43
5.6.30.0000.05320.42
5.6.20.0170.06720.46
5.6.10.0030.07720.46
5.6.00.0130.07720.44
5.5.380.0100.06720.41
5.5.370.0070.04720.33
5.5.360.0030.07320.34
5.5.350.0030.06720.37
5.5.340.0030.08320.81
5.5.330.0100.08020.92
5.5.320.0130.08720.76
5.5.310.0130.07020.79
5.5.300.0200.07020.92
5.5.290.0030.08720.82
5.5.280.0100.08020.63
5.5.270.0130.07320.87
5.5.260.0030.07020.74
5.5.250.0070.07320.68
5.5.240.0130.07720.16
5.5.230.0100.04320.21
5.5.220.0070.08320.30
5.5.210.0130.07320.29
5.5.200.0000.08320.14
5.5.190.0030.04720.21
5.5.180.0170.07020.08
5.5.160.0200.05720.22
5.5.150.0030.04720.23
5.5.140.0070.05320.24
5.5.130.0000.07020.13
5.5.120.0100.07320.20
5.5.110.0070.07720.14
5.5.100.0100.06320.05
5.5.90.0070.07320.06
5.5.80.0170.06720.09
5.5.70.0100.04020.09
5.5.60.0070.08020.08
5.5.50.0070.07720.14
5.5.40.0100.07020.09
5.5.30.0100.07320.14
5.5.20.0130.06019.88
5.5.10.0070.08020.04
5.5.00.0100.07320.14
5.4.450.0030.09019.48
5.4.440.0130.05019.29
5.4.430.0100.06319.30
5.4.420.0000.04719.16
5.4.410.0030.04319.43
5.4.400.0170.06718.95
5.4.390.0100.07018.97
5.4.380.0100.07318.82
5.4.370.0070.07319.21
5.4.360.0030.05318.98
5.4.350.0070.05019.25
5.4.340.0030.04719.03
5.4.320.0100.07318.95
5.4.310.0100.06019.06
5.4.300.0100.04019.07
5.4.290.0130.06318.98
5.4.280.0030.07718.95
5.4.270.0070.07718.81
5.4.260.0100.06718.78
5.4.250.0070.07719.05
5.4.240.0000.05019.13
5.4.230.0030.08319.05
5.4.220.0070.07719.02
5.4.210.0100.07319.07
5.4.200.0070.07319.16
5.4.190.0100.06719.14
5.4.180.0100.07019.04
5.4.170.0100.07019.02
5.4.160.0130.07019.21
5.4.150.0030.07719.11
5.4.140.0070.07316.34
5.4.130.0030.04716.29
5.4.120.0070.07316.36
5.4.110.0170.05316.41
5.4.100.0070.05716.22
5.4.90.0070.07316.26
5.4.80.0130.07016.33
5.4.70.0070.06316.20
5.4.60.0070.03316.41
5.4.50.0130.06716.19
5.4.40.0000.08316.29
5.4.30.0100.07316.39
5.4.20.0000.05316.18
5.4.10.0030.07316.38
5.4.00.0070.06015.71
5.3.290.0030.07714.57
5.3.280.0130.07714.58
5.3.270.0130.04314.51
5.3.260.0130.06714.60
5.3.250.0030.08014.57
5.3.240.0100.07314.59
5.3.230.0100.06314.55
5.3.220.0070.04314.53
5.3.210.0130.07014.57
5.3.200.0200.06714.55
5.3.190.0070.06714.50
5.3.180.0070.04314.40
5.3.170.0000.07014.54
5.3.160.0000.04314.52
5.3.150.0100.07714.52
5.3.140.0130.03714.42
5.3.130.0200.06314.55
5.3.120.0070.06714.54
5.3.110.0030.06714.55
5.3.100.0070.07014.00
5.3.90.0100.05313.98
5.3.80.0000.07714.02
5.3.70.0070.06713.93
5.3.60.0130.06713.96
5.3.50.0070.07013.81
5.3.40.0070.06013.91
5.3.30.0070.07013.86
5.3.20.0130.07013.55
5.3.10.0170.06013.64
5.3.00.0070.06313.63
5.2.170.0100.05711.21
5.2.160.0030.05311.06
5.2.150.0070.06011.00
5.2.140.0070.05311.18
5.2.130.0100.05311.10
5.2.120.0030.06010.93
5.2.110.0030.06011.10
5.2.100.0130.05011.09
5.2.90.0030.05711.02
5.2.80.0030.03311.12
5.2.70.0100.05310.96
5.2.60.0030.03011.04
5.2.50.0070.03711.05
5.2.40.0030.05710.79
5.2.30.0030.06010.78
5.2.20.0030.06011.03
5.2.10.0030.05010.88
5.2.00.0030.03710.77
5.1.60.0100.04010.00
5.1.50.0000.05010.05
5.1.40.0030.0339.81
5.1.30.0030.04710.27
5.1.20.0070.05310.20
5.1.10.0030.05710.05
5.1.00.0000.06010.11
5.0.50.0030.0278.59
5.0.40.0070.0408.39
5.0.30.0070.0608.26
5.0.20.0030.0408.08
5.0.10.0030.0338.25
5.0.00.0000.0708.25
4.4.90.0030.0177.93
4.4.80.0030.0277.93
4.4.70.0030.0307.93
4.4.60.0000.0207.93
4.4.50.0030.0207.93
4.4.40.0000.0537.93
4.4.30.0000.0377.93
4.4.20.0000.0277.93
4.4.10.0000.0377.93
4.4.00.0070.0477.93
4.3.110.0030.0277.93
4.3.100.0000.0277.93
4.3.90.0030.0307.93
4.3.80.0070.0277.93
4.3.70.0000.0307.93
4.3.60.0000.0207.93
4.3.50.0000.0207.93
4.3.40.0030.0507.93
4.3.30.0030.0237.93
4.3.20.0000.0277.93
4.3.10.0070.0337.93
4.3.00.0000.0177.93

preferences:
63.14 ms | 400 KiB | 5 Q