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[$i++]) ) ) ; echo substring($input,--$i,0),"\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)
8.3.60.0110.01118.43
8.3.50.0080.01221.08
8.3.40.0110.00718.93
8.3.30.0100.00320.00
8.3.20.0080.00020.20
8.3.10.0080.00020.84
8.3.00.0080.00022.34
8.2.180.0140.00718.41
8.2.170.0070.00722.96
8.2.160.0110.00322.21
8.2.150.0090.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00020.82
8.2.110.0060.00319.08
8.2.100.0110.00017.97
8.2.90.0000.00719.29
8.2.80.0000.00818.03
8.2.70.0050.00317.46
8.2.60.0000.00817.93
8.2.50.0000.00818.07
8.2.40.0040.00418.16
8.2.30.0030.00519.49
8.2.20.0030.00617.83
8.2.10.0030.00517.80
8.2.00.0040.00417.87
8.1.280.0140.00725.92
8.1.270.0090.00023.99
8.1.260.0080.00026.35
8.1.250.0030.00528.09
8.1.240.0090.00023.93
8.1.230.0080.00420.92
8.1.220.0080.00018.77
8.1.210.0030.00620.80
8.1.200.0060.00317.35
8.1.190.0040.00417.68
8.1.180.0050.00318.10
8.1.170.0000.00918.71
8.1.160.0040.00418.93
8.1.150.0040.00418.64
8.1.140.0040.00417.46
8.1.130.0070.00017.80
8.1.120.0040.00817.41
8.1.110.0040.00417.32
8.1.100.0030.00517.36
8.1.90.0040.00417.37
8.1.80.0030.00417.44
8.1.70.0000.00817.38
8.1.60.0000.00817.47
8.1.50.0040.00417.48
8.1.40.0030.00517.53
8.1.30.0050.00217.59
8.1.20.0050.00217.61
8.1.10.0070.00017.58
8.1.00.0000.00717.59
8.0.300.0070.00020.02
8.0.290.0040.00417.16
8.0.280.0030.00318.45
8.0.270.0040.00417.13
8.0.260.0000.00818.41
8.0.250.0000.01017.05
8.0.240.0050.00317.03
8.0.230.0040.00416.98
8.0.220.0050.00316.98
8.0.210.0040.00416.98
8.0.200.0060.00016.89
8.0.190.0000.00816.88
8.0.180.0040.00417.00
8.0.170.0050.00216.97
8.0.160.0040.00416.96
8.0.150.0000.00716.89
8.0.140.0070.00016.84
8.0.130.0000.00713.41
8.0.120.0000.00717.01
8.0.110.0020.00516.92
8.0.100.0070.00016.90
8.0.90.0040.00417.03
8.0.80.0030.01016.95
8.0.70.0070.00016.85
8.0.60.0040.00416.87
8.0.50.0000.00716.98
8.0.30.0130.00816.95
8.0.20.0090.00917.40
8.0.10.0000.00817.13
8.0.00.0090.01116.73
7.4.330.0050.00016.78
7.4.320.0030.00316.50
7.4.300.0000.00716.48
7.4.290.0070.00016.53
7.4.280.0000.00716.49
7.4.270.0020.00516.45
7.4.260.0000.00613.29
7.4.250.0070.00016.52
7.4.240.0040.00316.47
7.4.230.0000.00816.64
7.4.220.0130.00616.55
7.4.210.0060.01016.56
7.4.200.0030.00316.34
7.4.190.0030.00316.75
7.4.160.0080.00816.35
7.4.150.0110.00817.40
7.4.140.0120.00517.86
7.4.130.0080.00916.65
7.4.120.0080.00916.51
7.4.110.0120.00616.59
7.4.100.0150.00316.42
7.4.90.0070.01016.50
7.4.80.0030.01519.39
7.4.70.0050.01116.79
7.4.60.0130.00316.75
7.4.50.0030.00616.45
7.4.40.0120.00022.77
7.4.30.0090.01216.65
7.4.00.0070.01015.23
7.3.330.0030.00313.17
7.3.320.0070.00013.27
7.3.310.0030.00316.32
7.3.300.0030.00316.32
7.3.290.0070.00716.31
7.3.280.0110.00716.42
7.3.270.0040.01617.40
7.3.260.0130.00718.24
7.3.250.0050.01316.54
7.3.240.0070.01016.32
7.3.230.0190.00316.70
7.3.210.0080.00816.49
7.3.200.0100.00719.39
7.3.190.0060.01216.50
7.3.180.0070.01016.57
7.3.170.0100.00716.27
7.3.160.0070.01016.34
7.3.120.0030.01414.82
7.2.330.0090.01116.47
7.2.320.0160.00816.66
7.2.310.0160.01416.61
7.2.300.0050.01116.83
7.2.290.0090.00916.58
7.2.60.0080.00416.68
7.2.00.0080.00319.48
7.1.200.0000.01115.61
7.1.100.0040.00717.86
7.1.70.0090.00616.93
7.1.60.0060.01519.17
7.1.50.0040.02116.69
7.1.00.0000.07022.33
7.0.200.0000.00716.79
7.0.140.0030.07322.00
7.0.60.0030.07019.95
7.0.50.0170.06717.89
7.0.40.0130.07720.09
7.0.30.0430.04320.17
7.0.20.0170.04319.99
7.0.10.0130.08020.31
7.0.00.0070.05320.02
5.6.280.0070.07021.01
5.6.210.0100.05720.66
5.6.200.0000.04318.17
5.6.190.0070.06020.66
5.6.180.0300.07020.27
5.6.170.0230.07020.48
5.6.160.0070.04320.48
5.6.150.0170.03018.18
5.6.140.0000.05018.21
5.6.130.0070.08718.15
5.6.120.0130.07020.99
5.6.110.0170.05320.95
5.6.100.0130.07721.09
5.6.90.0230.06720.99
5.6.80.0100.06320.28
5.6.70.3270.03320.49
5.5.350.0070.07020.32
5.5.340.0100.04317.98
5.5.330.0030.06720.14
5.5.320.0070.05020.27
5.5.310.0330.07720.26
5.5.300.0070.05017.91
5.5.290.0000.05318.00
5.5.280.0200.06020.74
5.5.270.0200.07020.79
5.5.260.0030.04320.94
5.5.250.0130.07720.55
5.5.240.0130.06720.18
5.4.450.3330.04019.11
5.4.440.3230.04019.46
5.4.430.3300.03319.25
5.4.420.3630.03719.45
5.4.410.3470.03319.41
5.4.400.3000.03718.92
5.4.390.3300.03718.93
5.4.380.3270.04319.06
5.4.370.3330.03718.93
5.4.360.3300.04019.07
5.4.350.3330.03319.10
5.4.340.2670.04019.09
5.4.320.3370.04019.08
5.4.310.3200.03318.93
5.4.300.3370.03719.24
5.4.290.3370.04018.93
5.4.280.3330.04018.76
5.4.270.3270.03719.09
5.4.260.3330.03719.08
5.4.250.3370.03019.12
5.4.240.3070.04019.14
5.4.230.3500.04719.08
5.4.220.3270.04019.07
5.4.210.3000.03719.15
5.4.200.3570.03719.09
5.4.190.3230.04318.92
5.4.180.2170.03319.08
5.4.170.2370.03718.77
5.4.160.3100.04019.11
5.4.150.2700.03018.75
5.4.140.2900.03716.26
5.4.130.2330.03316.42
5.4.120.2730.03016.21
5.4.110.3370.03316.23
5.4.100.3230.03716.50
5.4.90.3730.04316.43
5.4.80.3270.03316.44
5.4.70.3030.03316.37
5.4.60.4000.03716.43
5.4.50.2500.03716.40
5.4.40.3030.03716.38
5.4.30.3530.04716.32
5.4.20.3000.04016.36
5.4.10.3300.02716.35
5.4.00.3400.03315.89
5.3.290.3300.04014.61
5.3.280.4070.03714.43
5.3.270.3130.04014.48
5.3.260.3330.04014.55
5.3.250.3130.04014.58
5.3.240.3070.04014.69
5.3.230.2930.03014.43
5.3.220.3270.03314.39
5.3.210.3470.03314.40
5.3.200.3430.02714.41
5.3.190.3030.04014.42
5.3.180.3230.04314.65
5.3.170.3130.03314.51
5.3.160.3270.03314.39
5.3.150.3370.03714.65
5.3.140.3130.03314.41
5.3.130.3430.03314.48
5.3.120.3370.03314.36
5.3.110.3470.03014.45
5.3.100.3000.04013.88
5.3.90.0070.06014.05
5.3.80.0100.07314.03
5.3.70.0130.06714.06
5.3.60.1830.04713.96
5.3.50.3670.03313.89
5.3.40.3300.04013.80
5.3.30.3430.03313.86
5.3.20.3300.03713.52
5.3.10.3400.03013.56
5.3.00.3100.03313.47
5.2.170.2900.03311.15
5.2.160.2770.02311.00
5.2.150.2300.03011.00
5.2.140.2530.02710.98
5.2.130.2600.03011.18
5.2.120.2830.03011.15
5.2.110.2630.03010.94
5.2.100.2770.02711.01
5.2.90.2570.03011.11
5.2.80.2600.02710.94
5.2.70.2630.02710.95
5.2.60.2570.03011.05
5.2.50.2530.03310.89
5.2.40.2130.02311.00
5.2.30.2070.03011.13
5.2.20.2100.03011.03
5.2.10.2470.02711.01
5.2.00.2130.02710.76
5.1.60.2330.0279.94
5.1.50.2270.0279.96
5.1.40.2470.02710.06
5.1.30.1470.02710.27
5.1.20.1770.02710.32
5.1.10.0070.03310.23
5.1.00.0070.0279.93
5.0.50.0000.0238.47
5.0.40.0030.0478.28
5.0.30.0000.0638.34
5.0.20.0030.0278.10
5.0.10.0070.0408.06
5.0.00.0000.0508.20
4.4.90.0570.0176.68
4.4.80.1130.0136.68
4.4.70.1300.0206.68
4.4.60.1270.0206.68
4.4.50.1100.0136.68
4.4.40.1230.0306.68
4.4.30.1300.0176.68
4.4.20.1270.0176.68
4.4.10.1000.0176.68
4.4.00.1230.0276.68
4.3.110.1030.0176.68
4.3.100.1000.0176.68
4.3.90.1330.0136.68
4.3.80.1230.0336.68
4.3.70.1000.0176.68
4.3.60.1270.0176.68
4.3.50.1270.0176.68
4.3.40.1300.0306.68
4.3.30.0570.0176.68
4.3.20.0700.0206.68
4.3.10.0600.0206.68
4.3.00.0570.0236.68

preferences:
42.72 ms | 401 KiB | 5 Q