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[$i++]) ) ) ; echo "{substr($input,--$i)}\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)
8.3.60.0070.01418.43
8.3.50.0050.01021.27
8.3.40.0080.00818.80
8.3.30.0060.00920.26
8.3.20.0070.00020.35
8.3.10.0040.00421.05
8.3.00.0080.00022.57
8.2.180.0110.01118.29
8.2.170.0150.00022.96
8.2.160.0200.00022.13
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0050.00320.73
8.2.110.0030.00619.27
8.2.100.0060.00617.86
8.2.90.0000.00719.30
8.2.80.0030.00618.03
8.2.70.0080.00017.63
8.2.60.0030.00517.93
8.2.50.0060.00318.07
8.2.40.0000.00718.46
8.2.30.0070.00019.35
8.2.20.0040.00417.66
8.2.10.0050.00317.81
8.2.00.0040.00417.75
8.1.280.0070.00725.92
8.1.270.0090.00023.99
8.1.260.0050.00326.35
8.1.250.0170.00028.09
8.1.240.0060.00323.91
8.1.230.0090.00320.89
8.1.220.0030.00718.77
8.1.210.0040.00420.88
8.1.200.0060.00317.36
8.1.190.0030.00517.53
8.1.180.0040.00418.10
8.1.170.0050.00318.43
8.1.160.0030.00518.77
8.1.150.0040.00418.68
8.1.140.0000.00717.36
8.1.130.0030.00317.89
8.1.120.0030.00717.38
8.1.110.0050.00217.34
8.1.100.0000.00717.46
8.1.90.0000.00717.36
8.1.80.0000.00817.45
8.1.70.0050.00317.45
8.1.60.0090.00017.47
8.1.50.0040.00417.51
8.1.40.0080.00017.49
8.1.30.0000.00717.64
8.1.20.0040.00417.65
8.1.10.0070.00017.44
8.1.00.0000.00717.50
8.0.300.0070.00020.09
8.0.290.0070.00017.05
8.0.280.0000.00718.51
8.0.270.0000.00717.26
8.0.260.0040.00416.69
8.0.250.0000.00916.97
8.0.240.0040.00417.01
8.0.230.0040.00316.97
8.0.220.0040.00416.85
8.0.210.0000.00816.87
8.0.200.0030.00316.95
8.0.190.0040.00416.89
8.0.180.0000.00816.80
8.0.170.0040.00416.89
8.0.160.0000.00717.02
8.0.150.0030.00316.73
8.0.140.0040.00416.89
8.0.130.0050.00013.33
8.0.120.0040.00416.75
8.0.110.0080.00016.73
8.0.100.0000.00716.71
8.0.90.0040.00416.91
8.0.80.0130.00316.89
8.0.70.0030.00516.79
8.0.60.0050.00216.76
8.0.50.0040.00417.00
8.0.30.0060.01517.03
8.0.20.0030.01417.40
8.0.10.0000.00717.00
8.0.00.0130.00716.76
7.4.330.0030.00316.76
7.4.320.0000.00716.48
7.4.300.0030.00316.52
7.4.290.0030.00316.52
7.4.280.0030.00316.40
7.4.270.0070.00016.61
7.4.260.0050.00013.32
7.4.250.0050.00316.49
7.4.240.0040.00416.52
7.4.230.0070.00016.55
7.4.220.0030.00316.58
7.4.210.0070.00916.54
7.4.200.0000.00716.39
7.4.190.0040.00416.67
7.4.160.0120.00316.46
7.4.150.0160.00317.40
7.4.140.0240.01117.86
7.4.130.0130.00316.54
7.4.120.0110.00516.45
7.4.110.0060.01016.41
7.4.100.0130.00616.52
7.4.90.0060.01216.36
7.4.80.0130.00319.39
7.4.70.0040.01216.42
7.4.60.0030.01316.27
7.4.50.0060.00316.44
7.4.40.0070.01122.77
7.4.30.0110.00416.58
7.4.10.0030.01414.82
7.4.00.0060.01214.85
7.3.330.0000.00513.16
7.3.320.0030.00313.11
7.3.310.0030.00616.28
7.3.300.0030.00316.25
7.3.290.0090.00916.31
7.3.280.0100.00816.23
7.3.270.0180.00017.40
7.3.260.0150.00418.24
7.3.250.0160.00416.40
7.3.240.0140.00316.42
7.3.230.0030.01516.52
7.3.210.0100.00616.50
7.3.200.0050.01319.39
7.3.190.0090.01216.36
7.3.180.0030.01216.32
7.3.170.0060.00916.38
7.3.160.0120.00616.53
7.3.130.0060.01315.04
7.3.120.0050.01314.85
7.3.110.0050.01114.88
7.3.100.0020.01214.90
7.3.90.0080.00814.74
7.3.80.0080.00714.73
7.3.70.0050.00814.91
7.3.60.0070.00914.57
7.3.50.0030.00814.93
7.3.40.0060.00614.74
7.3.30.0090.00514.91
7.3.20.0070.00516.62
7.3.10.0110.00516.53
7.3.00.0110.00316.75
7.2.330.0040.01316.53
7.2.320.0080.00816.51
7.2.310.0140.01016.61
7.2.300.0040.01416.56
7.2.290.0120.00916.49
7.2.260.0050.01415.02
7.2.250.0040.01415.18
7.2.240.0060.00914.88
7.2.230.0070.01315.02
7.2.220.0070.01215.13
7.2.210.0050.00615.02
7.2.200.0040.01015.04
7.2.190.0080.00914.98
7.2.180.0000.01414.89
7.2.170.0090.00415.07
7.2.160.0080.00914.97
7.2.150.0060.00816.91
7.2.140.0050.00816.70
7.2.130.0020.01216.88
7.2.120.0050.00816.78
7.2.110.0070.00917.04
7.2.100.0060.00716.61
7.2.90.0030.00816.99
7.2.80.0070.00916.95
7.2.70.0050.00916.94
7.2.60.0080.00616.86
7.2.50.0090.00816.95
7.2.40.0060.00616.76
7.2.30.0090.00516.82
7.2.20.0080.00516.90
7.2.10.0070.00916.89
7.2.00.0030.01216.79
7.1.330.0060.00915.87
7.1.320.0080.00615.96
7.1.310.0050.00515.77
7.1.300.0050.01115.54
7.1.290.0050.00615.71
7.1.280.0050.00915.91
7.1.270.0090.00415.92
7.1.260.0060.01115.78
7.1.250.0030.01015.58
7.1.240.0030.01215.62
7.1.230.0000.01515.89
7.1.220.0060.00515.86
7.1.210.0070.00415.82
7.1.200.0030.01115.73
7.1.190.0040.00615.87
7.1.180.0050.00815.91
7.1.170.0080.00615.72
7.1.160.0020.01015.80
7.1.150.0030.00915.98
7.1.140.0050.00715.77
7.1.130.0070.00815.85
7.1.120.0040.01215.81
7.1.110.0090.00815.94
7.1.100.0060.00615.85
7.1.90.0060.00715.92
7.1.80.0070.00815.82
7.1.70.0060.00516.38
7.1.60.0060.01016.86
7.1.50.0100.00916.24
7.1.40.0040.01015.93
7.1.30.0050.00915.62
7.1.20.0060.00615.62
7.1.10.0090.00615.74
7.1.00.0070.02618.03
7.0.330.0040.00915.36
7.0.320.0050.00715.48
7.0.310.0050.00515.41
7.0.300.0070.00715.46
7.0.290.0000.01215.45
7.0.280.0100.00215.32
7.0.270.0060.00515.41
7.0.260.0100.00615.56
7.0.250.0030.01115.29
7.0.240.0070.00915.43
7.0.230.0070.00615.42
7.0.220.0040.01115.48
7.0.210.0040.00615.46
7.0.200.0020.01015.89
7.0.190.0020.01315.48
7.0.180.0050.00915.42
7.0.170.0040.01115.26
7.0.160.0020.01115.52
7.0.150.0040.00715.45
7.0.140.0050.03017.63
7.0.130.0050.01015.56
7.0.120.0070.00715.46
7.0.110.0060.00915.38
7.0.100.0060.03417.00
7.0.90.0060.02216.88
7.0.80.0050.03416.90
7.0.70.0030.03416.89
7.0.60.0050.03316.93
7.0.50.0030.02417.11
7.0.40.0060.03015.76
7.0.30.0090.02215.68
7.0.20.0060.03415.70
7.0.10.0080.03115.71
7.0.00.0050.02815.74
5.6.400.0090.00614.23
5.6.390.0030.01114.33
5.6.380.0050.01014.44
5.6.370.0070.00714.61
5.6.360.0060.00614.41
5.6.350.0080.00414.54
5.6.340.0060.00514.52
5.6.330.0070.00514.60
5.6.320.0060.00914.42
5.6.310.0060.00914.20
5.6.300.0050.00814.53
5.6.290.0050.00814.50
5.6.280.0070.03116.68
5.6.270.0070.01214.54
5.6.260.0050.01014.41
5.6.250.0070.02716.50
5.6.240.0090.02116.45
5.6.230.0060.03516.42
5.6.220.0040.03416.52
5.6.210.0070.02416.42
5.6.200.0110.02916.68
5.6.190.0100.03216.55
5.6.180.0070.03416.64
5.6.170.0090.03016.43
5.6.160.0100.02816.65
5.6.150.0050.03216.65
5.6.140.0100.02116.48
5.6.130.0050.03216.67
5.6.120.0060.03316.68
5.6.110.0050.03316.59
5.6.100.0070.01516.63
5.6.90.0060.03316.56
5.6.80.0070.03516.39
5.6.70.0060.03216.34
5.6.60.0080.02716.37
5.6.50.0040.03016.41
5.6.40.0070.02516.28
5.6.30.0030.02816.41
5.6.20.0060.02016.26
5.6.10.0050.02716.34
5.6.00.0080.02816.26
5.5.380.0100.02816.21
5.5.370.0030.03616.27
5.5.360.0050.03616.30
5.5.350.0060.02816.37
5.5.340.0070.02816.39
5.5.330.0020.03516.51
5.5.320.0070.02316.62
5.5.310.0070.02216.63
5.5.300.0060.03216.63
5.5.290.0070.03216.28
5.5.280.0080.02816.67
5.5.270.0070.02516.50
5.5.260.0050.02916.40
5.5.250.0090.02616.42
5.5.240.0070.03216.32
5.5.230.0040.02916.35
5.5.220.0090.02716.00
5.5.210.0060.03116.13
5.5.200.0050.03316.31
5.5.190.0050.03016.27
5.5.180.0110.02716.35
5.5.170.0090.00414.09
5.5.160.0070.03016.17
5.5.150.0090.02516.39
5.5.140.0100.02616.16
5.5.130.0090.03016.18
5.5.120.0120.02816.14
5.5.110.0070.03016.15
5.5.100.0070.03416.04
5.5.90.0040.03116.06
5.5.80.0050.03216.16
5.5.70.0090.02716.15
5.5.60.0040.03316.08
5.5.50.0100.02816.25
5.5.40.0060.03016.22
5.5.30.0070.02116.16
5.5.20.0070.03116.11
5.5.10.0080.02116.22
5.5.00.0060.03216.13
5.4.450.0070.01714.92
5.4.440.0050.03214.86
5.4.430.0070.03114.91
5.4.420.0030.02814.88
5.4.410.0020.02714.86
5.4.400.0070.02514.81
5.4.390.0050.02814.83
5.4.380.0040.03014.71
5.4.370.0000.02414.76
5.4.360.0050.02914.79
5.4.350.0010.03214.80
5.4.340.0030.03114.77
5.4.330.0020.00812.68
5.4.320.0040.02814.80
5.4.310.0050.03014.83
5.4.300.0090.02714.80
5.4.290.0050.02814.81
5.4.280.0050.01914.77
5.4.270.0070.02514.87
5.4.260.0060.03214.80
5.4.250.0090.02514.86
5.4.240.0030.03014.77
5.4.230.0040.02514.82
5.4.220.0040.01914.78
5.4.210.0050.03014.80
5.4.200.0090.02414.81
5.4.190.0060.02714.78
5.4.180.0060.02814.76
5.4.170.0100.01214.77
5.4.160.0020.03314.79
5.4.150.0090.01614.74
5.4.140.0060.02513.87
5.4.130.0080.02513.86
5.4.120.0030.03013.88
5.4.110.0030.03013.85
5.4.100.0070.01713.87
5.4.90.0070.02813.86
5.4.80.0030.02113.87
5.4.70.0060.02713.93
5.4.60.0050.02613.88
5.4.50.0020.02013.90
5.4.40.0070.02613.88
5.4.30.0070.02713.89
5.4.20.0030.02913.88
5.4.10.0090.02013.91
5.4.00.0080.02513.69
5.3.290.0030.02913.34
5.3.280.0080.02813.26
5.3.270.0040.02513.30
5.3.260.0040.02813.27
5.3.250.0040.02913.31
5.3.240.0090.02813.32
5.3.230.0070.02813.31
5.3.220.0060.03013.29
5.3.210.0060.01713.25
5.3.200.0050.02913.26
5.3.190.0070.02413.29
5.3.180.0020.01813.29
5.3.170.0040.02613.25
5.3.160.0070.02613.30
5.3.150.0050.02513.30
5.3.140.0010.03013.29
5.3.130.0040.02813.24
5.3.120.0040.02413.29
5.3.110.0080.01613.29
5.3.100.0060.02613.10
5.3.90.0040.02813.10
5.3.80.0030.02013.12
5.3.70.0030.02913.11
5.3.60.0040.02913.11
5.3.50.0050.02913.03
5.3.40.0020.01813.08
5.3.30.0050.01413.07
5.3.20.0020.02013.02
5.3.10.0040.02212.98
5.3.00.0060.01812.92
5.2.170.0070.05010.99
5.2.160.0070.03011.13
5.2.150.0070.02711.01
5.2.140.0030.03011.15
5.2.130.0170.02011.10
5.2.120.0030.02711.02
5.2.110.0070.02711.12
5.2.100.0030.02711.09
5.2.90.0030.03311.13
5.2.80.0000.03310.94
5.2.70.0030.02711.09
5.2.60.0030.02711.05
5.2.50.0030.02710.77
5.2.40.0030.02710.99
5.2.30.0000.03010.93
5.2.20.0000.02710.98
5.2.10.0030.02310.91
5.2.00.0000.03710.71
5.1.60.0030.04710.07
5.1.50.0070.04710.11
5.1.40.0070.03710.08
5.1.30.0130.05010.42
5.1.20.0000.04010.21
5.1.10.0030.03710.09
5.1.00.0030.05010.05
5.0.50.0000.0208.55
5.0.40.0000.0208.54
5.0.30.0070.0278.54
5.0.20.0000.0278.54
5.0.10.0000.0238.54
5.0.00.0000.0308.54
4.4.90.0000.0238.54
4.4.80.0000.0208.54
4.4.70.0000.0178.54
4.4.60.0000.0178.54
4.4.50.0030.0238.54
4.4.40.0000.0408.54
4.4.30.0000.0138.54
4.4.20.0000.0238.54
4.4.10.0030.0138.54
4.4.00.0030.0238.54
4.3.110.0030.0138.54
4.3.100.0000.0178.54
4.3.90.0000.0178.54
4.3.80.0030.0208.54
4.3.70.0030.0178.54
4.3.60.0000.0138.54
4.3.50.0000.0238.54
4.3.40.0000.0278.54
4.3.30.0000.0178.54
4.3.20.0000.0208.54
4.3.10.0000.0178.54
4.3.00.0000.0238.54

preferences:
45.65 ms | 401 KiB | 5 Q