3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = "the number of letters in mississippi = 11"; $i=0; $cp = $input; while( !(ctype_digit($cp[$i++]) ) ) ; echo $cp[--$i],$cp[$i+1],"\n";

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)
8.3.60.0060.01518.28
8.3.50.0130.00716.73
8.3.40.0070.01018.70
8.3.30.0100.00318.79
8.3.20.0090.00018.73
8.3.10.0080.00020.39
8.3.00.0000.00817.63
8.2.180.0210.00016.88
8.2.170.0120.00322.96
8.2.160.0070.00722.17
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00419.89
8.2.110.0070.00321.04
8.2.100.0120.00017.97
8.2.90.0000.00919.14
8.2.80.0040.00418.04
8.2.70.0040.00417.75
8.2.60.0040.00417.79
8.2.50.0000.00818.07
8.2.40.0000.00819.94
8.2.30.0070.00018.05
8.2.20.0000.00717.73
8.2.10.0030.00617.67
8.2.00.0000.01117.66
8.1.280.0110.00725.92
8.1.270.0040.00423.99
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00622.71
8.1.230.0070.00320.91
8.1.220.0080.00017.77
8.1.210.0060.00318.81
8.1.200.0080.00317.35
8.1.190.0040.00417.51
8.1.180.0040.00418.10
8.1.170.0030.00618.75
8.1.160.0070.00018.80
8.1.150.0080.00018.55
8.1.140.0040.00417.58
8.1.130.0000.00717.75
8.1.120.0080.00017.43
8.1.110.0060.00317.35
8.1.100.0040.00417.49
8.1.90.0070.00017.49
8.1.80.0020.00517.35
8.1.70.0000.00817.40
8.1.60.0040.00417.47
8.1.50.0000.00717.35
8.1.40.0070.00017.55
8.1.30.0040.00417.64
8.1.20.0030.00517.54
8.1.10.0000.00717.64
8.1.00.0000.00817.40
8.0.300.0090.00020.03
8.0.290.0060.00316.63
8.0.280.0050.00218.34
8.0.270.0000.00717.27
8.0.260.0000.00718.66
8.0.250.0070.00016.85
8.0.240.0040.00416.99
8.0.230.0040.00416.87
8.0.220.0000.00716.77
8.0.210.0030.00316.88
8.0.200.0030.00316.95
8.0.190.0040.00416.83
8.0.180.0070.00016.99
8.0.170.0040.00416.92
8.0.160.0030.00316.94
8.0.150.0050.00316.79
8.0.140.0050.00516.82
8.0.130.0030.00313.36
8.0.120.0070.00016.85
8.0.110.0050.00316.71
8.0.100.0000.00716.69
8.0.90.0040.00316.80
8.0.80.0090.01216.86
8.0.70.0040.00416.90
8.0.60.0040.00416.85
8.0.50.0020.00516.93
8.0.30.0110.01317.17
8.0.20.0110.01217.07
8.0.10.0050.00317.02
8.0.00.0140.00516.80
7.4.330.0000.00514.78
7.4.320.0030.00316.65
7.4.300.0050.00316.48
7.4.290.0080.00016.58
7.4.280.0020.00516.61
7.4.270.0000.00816.65
7.4.260.0050.00013.27
7.4.250.0040.00416.58
7.4.240.0040.00416.40
7.4.230.0060.00316.53
7.4.220.0040.01116.40
7.4.210.0100.00816.51
7.4.200.0000.00716.65
7.4.190.0000.00716.27
7.4.160.0060.00916.37
7.4.150.0160.00617.07
7.4.140.0120.00617.14
7.4.130.0150.00316.57
7.4.120.0100.01016.47
7.4.110.0070.01016.50
7.4.100.0030.01516.64
7.4.90.0110.00816.49
7.4.80.0060.01218.80
7.4.70.0060.01016.29
7.4.60.0070.01316.53
7.4.50.0000.00716.49
7.4.40.0080.00822.26
7.4.30.0130.00316.40
7.4.00.0090.00315.19
7.3.330.0000.00613.22
7.3.320.0030.00313.09
7.3.310.0030.00316.28
7.3.300.0070.00016.29
7.3.290.0120.00816.28
7.3.280.0120.00616.31
7.3.270.0130.00317.07
7.3.260.0130.00818.24
7.3.250.0080.01316.38
7.3.240.0100.00716.61
7.3.230.0130.01016.64
7.3.210.0130.00316.32
7.3.200.0140.01019.39
7.3.190.0120.00816.57
7.3.180.0070.01016.41
7.3.170.0040.01116.59
7.3.160.0060.00916.30
7.3.120.0030.01114.70
7.2.330.0170.00016.55
7.2.320.0040.01416.74
7.2.310.0130.00316.56
7.2.300.0070.01016.46
7.2.290.0110.01216.64
7.2.60.0090.00616.95
7.2.00.0060.00919.23
7.1.200.0040.00815.77
7.1.100.0030.00718.00
7.1.70.0030.00617.08
7.1.60.0040.02119.40
7.1.50.0090.00616.57
7.1.00.0100.05722.41
7.0.200.0030.00316.92
7.0.140.0000.07722.18
7.0.120.0000.03322.03
7.0.60.0100.02721.77
7.0.50.0100.07717.80
7.0.40.0170.07020.23
7.0.30.0230.04320.12
7.0.20.0200.03720.09
7.0.10.0130.06720.12
7.0.00.0130.05020.04
5.6.280.0030.07020.98
5.6.210.0100.08320.47
5.6.200.0070.05318.19
5.6.190.0030.08320.59
5.6.180.0170.08320.32
5.6.170.0430.08020.41
5.6.160.0100.08020.40
5.6.150.0100.07718.09
5.6.140.0030.04718.18
5.6.130.0170.07018.11
5.6.120.0130.04721.11
5.6.110.0130.07021.11
5.6.100.0100.07021.08
5.6.90.0070.08720.98
5.6.80.0030.06320.27
5.5.350.0000.03320.38
5.5.340.0030.04017.92
5.5.330.0070.04320.37
5.5.320.0300.07320.24
5.5.310.0270.05020.14
5.5.300.0030.09017.98
5.5.290.0070.04018.00
5.5.280.0070.08320.67
5.5.270.0100.07320.75
5.5.260.0100.03720.72
5.5.250.0100.06320.57
5.5.240.0200.06020.11
5.4.450.0070.08019.12
5.4.440.0030.05319.37
5.4.430.0130.07019.23
5.4.420.0070.07719.50
5.4.410.0070.05318.98
5.4.400.0030.03719.19
5.4.390.0030.04718.79
5.4.380.0070.05018.79
5.4.370.0030.04018.80
5.4.360.0070.08019.18
5.4.350.0000.05319.09
5.4.340.0200.03019.00
5.4.320.0070.04019.00
5.4.310.0030.05019.11
5.4.300.0100.07019.07
5.4.290.0070.05318.79
5.4.280.0070.04019.15
5.4.270.0030.06019.15
5.4.260.0100.04718.79
5.4.250.0000.04319.11
5.4.240.0070.03719.17
5.4.230.0100.08019.07
5.4.220.0070.03719.11
5.4.210.0070.06718.82
5.4.200.0000.07318.91
5.4.190.0030.04319.13
5.4.180.0070.06718.79
5.4.170.0030.04319.11
5.4.160.0000.08318.76
5.4.150.0070.05019.15
5.4.140.0130.06716.38
5.4.130.0030.07716.29
5.4.120.0130.04316.29
5.4.110.0070.07316.23
5.4.100.0070.07016.26
5.4.90.0070.06716.61
5.4.80.0100.03316.29
5.4.70.0030.06016.29
5.4.60.0170.06716.36
5.4.50.0070.06716.36
5.4.40.0030.06016.29
5.4.30.0030.06016.27
5.4.20.0030.04316.25
5.4.10.0070.05316.34
5.4.00.0130.06715.82
5.3.290.0100.07714.46
5.3.280.0070.03714.68
5.3.270.0100.07314.54
5.3.260.0030.08314.48
5.3.250.0070.06014.50
5.3.240.0030.07714.39
5.3.230.0070.07714.68
5.3.220.0070.03314.44
5.3.210.0100.07014.54
5.3.200.0030.07714.35
5.3.190.0030.07314.51
5.3.180.0030.05714.54
5.3.170.0030.04014.38
5.3.160.0100.04014.50
5.3.150.0000.04314.49
5.3.140.0000.05314.45
5.3.130.0130.06014.42
5.3.120.0070.08014.47
5.3.110.0100.07314.38
5.3.100.0070.05013.93
5.3.90.0070.07313.95
5.3.80.0170.04713.83
5.3.70.0070.05013.88
5.3.60.0100.03713.97
5.3.50.0070.03713.88
5.3.40.0070.06713.76
5.3.30.0130.04313.70
5.3.20.0030.06713.64
5.3.10.0030.04013.58
5.3.00.0130.05713.56
5.2.170.0170.05311.12
5.2.160.0030.04311.11
5.2.150.0000.03310.98
5.2.140.0100.05710.96
5.2.130.0030.04711.09
5.2.120.0000.04011.04
5.2.110.0030.05711.05
5.2.100.0030.03710.96
5.2.90.0000.05710.93
5.2.80.0070.05311.10
5.2.70.0030.04011.25
5.2.60.0030.04311.20
5.2.50.0030.05310.94
5.2.40.0030.03010.92
5.2.30.0200.05011.05
5.2.20.0070.05010.94
5.2.10.0030.03310.83
5.2.00.0070.03710.61
5.1.60.0000.03010.04
5.1.50.0000.02710.02
5.1.40.0070.0209.81
5.1.30.0030.02310.36
5.1.20.0000.03010.34
5.1.10.0030.02310.07
5.1.00.0000.03310.13
5.0.50.0000.0208.61
5.0.40.0030.0178.43
5.0.30.0030.0308.22
5.0.20.0030.0178.24
5.0.10.0000.0208.13
5.0.00.0070.0278.13
4.4.90.0000.0337.96
4.4.80.0000.0237.96
4.4.70.0070.0337.96
4.4.60.0000.0377.96
4.4.50.0000.0177.96
4.4.40.0000.0277.96
4.4.30.0000.0177.96
4.4.20.0000.0177.96
4.4.10.0000.0177.96
4.4.00.0000.0237.96
4.3.110.0000.0137.96
4.3.100.0000.0137.96
4.3.90.0000.0177.96
4.3.80.0000.0237.96
4.3.70.0070.0107.96
4.3.60.0000.0137.96
4.3.50.0000.0137.96
4.3.40.0000.0237.96
4.3.30.0030.0137.96
4.3.20.0030.0137.96
4.3.10.0000.0137.96
4.3.00.0000.0137.96

preferences:
41.92 ms | 401 KiB | 5 Q