3v4l.org

run code in 300+ PHP versions simultaneously
<?php $word = "Capuaalo"; $length = count($word); $count = 0; for($i = 0; $i < $length; $i++) { if($search = substr($word, $i, 1)=="a"){ $count = $count + 1; } } echo $length; echo substr($word, 0, 1); echo $count; ?>

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)
8.3.60.0040.01118.40
8.3.50.0100.00721.27
8.3.40.0040.01118.67
8.3.30.0110.00419.13
8.3.20.0070.00020.04
8.3.10.0040.00422.10
8.3.00.0040.00422.50
8.2.180.0150.00018.54
8.2.170.0140.00722.96
8.2.160.0100.00319.05
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0000.01026.16
8.2.120.0040.00419.36
8.2.110.0000.00919.29
8.2.100.0120.00017.91
8.2.90.0080.00019.28
8.2.80.0000.00817.97
8.2.70.0030.00617.36
8.2.60.0080.00017.80
8.2.50.0000.00818.07
8.2.40.0020.00518.22
8.2.30.0050.00217.93
8.2.20.0000.00817.69
8.2.10.0030.00517.84
8.2.00.0090.00017.82
8.1.280.0070.01425.92
8.1.270.0080.00021.91
8.1.260.0100.00326.35
8.1.250.0000.00828.09
8.1.240.0060.00321.37
8.1.230.0080.00317.42
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0110.00017.11
8.1.190.0040.00417.35
8.1.180.0060.00320.61
8.1.170.0030.00618.59
8.1.160.0070.00022.18
8.1.150.0050.00518.63
8.1.140.0000.00717.42
8.1.130.0030.00317.86
8.1.120.0070.00017.36
8.1.110.0080.00017.41
8.1.100.0040.00417.46
8.1.90.0050.00217.46
8.1.80.0070.00017.45
8.1.70.0050.00317.39
8.1.60.0080.00017.55
8.1.50.0000.00817.39
8.1.40.0030.00617.55
8.1.30.0040.00417.58
8.1.20.0040.00417.46
8.1.10.0060.00317.52
8.1.00.0000.00917.53
8.0.300.0000.00818.77
8.0.290.0070.00016.75
8.0.280.0040.00418.39
8.0.270.0030.00317.05
8.0.260.0000.00616.71
8.0.250.0050.00316.94
8.0.240.0020.00516.90
8.0.230.0040.00416.94
8.0.220.0000.00716.77
8.0.210.0070.00016.84
8.0.200.0000.00716.98
8.0.190.0000.00817.00
8.0.180.0000.00716.81
8.0.170.0000.00716.93
8.0.160.0000.00816.80
8.0.150.0070.00016.80
8.0.140.0040.00416.79
8.0.130.0030.00313.36
8.0.120.0020.00516.86
8.0.110.0030.00316.96
8.0.100.0030.00316.82
8.0.90.0040.00416.93
8.0.80.0100.00716.97
8.0.70.0070.00016.97
8.0.60.0080.00017.01
8.0.50.0040.00416.80
8.0.30.0140.00616.97
8.0.20.0100.01217.40
8.0.10.0040.00417.11
8.0.00.0070.01116.72
7.4.330.0030.00315.13
7.4.320.0060.00016.60
7.4.300.0030.00316.49
7.4.290.0070.00016.39
7.4.280.0030.00316.57
7.4.270.0000.00716.59
7.4.260.0000.01016.61
7.4.250.0040.00416.46
7.4.240.0010.00616.49
7.4.230.0000.00716.58
7.4.220.0150.00316.60
7.4.210.0100.00916.54
7.4.200.0050.00316.66
7.4.190.0040.00416.68
7.4.160.0000.01916.53
7.4.150.0060.01217.40
7.4.140.0120.00917.86
7.4.130.0120.00716.63
7.4.120.0130.00516.46
7.4.110.0090.00916.61
7.4.100.0070.01116.55
7.4.90.0070.01316.38
7.4.80.0040.01719.39
7.4.70.0040.01416.47
7.4.60.0070.01016.42
7.4.50.0040.00416.35
7.4.40.0040.01122.77
7.4.30.0120.01116.78
7.4.00.0030.00714.93
7.3.330.0040.00413.07
7.3.320.0030.00313.04
7.3.310.0000.00716.25
7.3.300.0030.00316.30
7.3.290.0060.00816.30
7.3.280.0080.00716.34
7.3.270.0130.01317.40
7.3.260.0110.01116.43
7.3.250.0090.01016.38
7.3.240.0030.01316.43
7.3.230.0070.01716.39
7.3.210.0060.01216.37
7.3.200.0090.00619.39
7.3.190.0190.00416.61
7.3.180.0060.00916.43
7.3.170.0090.01216.51
7.3.160.0080.00816.54
7.3.120.0020.01416.09
7.3.110.0110.00516.03
7.3.100.0080.00715.81
7.3.90.0070.00915.99
7.3.80.0020.01315.98
7.3.70.0050.01115.91
7.3.60.0090.00715.97
7.3.50.0090.00515.83
7.3.40.0040.00816.05
7.3.30.0050.00815.86
7.3.20.0100.00616.80
7.3.10.0060.00616.98
7.3.00.0040.00916.96
7.2.330.0060.01116.73
7.2.320.0080.00816.31
7.2.310.0100.00616.79
7.2.300.0070.01116.62
7.2.290.0140.00416.71
7.2.240.0090.00816.14
7.2.230.0080.00816.22
7.2.220.0050.01216.11
7.2.210.0090.00515.91
7.2.200.0070.00816.14
7.2.190.0050.00716.19
7.2.180.0080.00516.08
7.2.170.0020.01316.18
7.2.160.0030.00816.14
7.2.150.0040.01017.01
7.2.140.0000.01416.90
7.2.130.0050.01117.01
7.2.120.0100.00617.02
7.2.110.0020.01016.87
7.2.100.0020.01217.09
7.2.90.0050.00817.16
7.2.80.0050.00817.06
7.2.70.0020.01417.04
7.2.60.0070.00917.00
7.2.50.0050.01116.98
7.2.40.0070.00917.01
7.2.30.0050.01017.08
7.2.20.0030.00717.05
7.2.10.0100.00517.01
7.2.00.0090.00917.05
7.1.330.0040.01116.34
7.1.320.0070.00616.38
7.1.310.0060.00916.54
7.1.300.0070.00916.44
7.1.290.0050.01016.47
7.1.280.0030.01216.57
7.1.270.0040.01016.46
7.1.260.0000.01416.60
7.1.250.0050.00816.50
7.1.200.0070.00415.85
7.1.100.0060.00917.82
7.1.70.0040.00816.93
7.1.60.0040.00719.82
7.1.50.0070.01717.00
7.1.00.0070.05722.45
7.0.200.0040.00816.69
7.0.140.0070.07022.18
7.0.60.0130.05320.00
7.0.50.0030.08717.88
7.0.40.0030.08020.53
7.0.30.0230.03720.11
7.0.20.0330.06320.16
7.0.10.0100.03720.06
7.0.00.0130.08320.01
5.6.280.0100.06721.10
5.6.210.0170.06020.76
5.6.200.0100.08018.14
5.6.190.0070.05020.57
5.6.180.0300.05720.45
5.6.170.0400.07320.34
5.6.160.0000.04720.34
5.6.150.0000.07718.22
5.6.140.0170.07718.12
5.6.130.0070.05718.22
5.6.120.0170.07321.11
5.6.110.0200.03020.98
5.6.100.0170.07320.98
5.6.90.0100.08320.88
5.6.80.0130.04720.37
5.6.70.4530.04320.39
5.5.350.0030.07720.40
5.5.340.0030.04017.91
5.5.330.0100.08020.25
5.5.320.0270.07320.28
5.5.310.0430.03720.18
5.5.300.0130.07317.89
5.5.290.0130.04318.01
5.5.280.0070.04720.65
5.5.270.0200.07320.84
5.5.260.0100.08320.75
5.5.250.0100.08020.61
5.5.240.0000.08320.23
5.4.450.0070.06019.28
5.4.440.0600.06719.10
5.4.430.0730.06019.63
5.4.420.0170.04719.47
5.4.410.0630.05719.52
5.4.400.1170.07018.64
5.4.390.1200.05718.46
5.4.380.0330.04718.52
5.4.370.0300.05318.68
5.4.360.0300.06318.68
5.4.350.0170.05318.70
5.4.340.0200.06018.63
5.4.320.0090.03712.46
5.4.310.0040.03912.45
5.4.300.0110.04012.45
5.4.290.0090.03512.45
5.4.280.0090.03312.35
5.4.270.0080.04012.35
5.4.260.0030.06018.73
5.4.250.0100.06718.91
5.4.240.0170.05718.84
5.4.230.0100.06318.92
5.4.220.0100.05719.00
5.4.210.0030.07319.00
5.4.200.0070.07318.91
5.4.190.0070.09018.89
5.4.180.0100.05718.89
5.4.170.0030.08018.89
5.4.160.0070.06718.93
5.4.150.0100.05018.83
5.4.140.0230.05716.45
5.4.130.0100.04716.53
5.4.120.0100.04716.25
5.4.110.0170.06716.49
5.4.100.0030.06716.50
5.4.90.0100.06716.34
5.4.80.0170.06016.48
5.4.70.0130.06716.41
5.4.60.0100.06716.39
5.4.50.0070.05016.38
5.4.40.0100.06016.43
5.4.30.0100.05716.32
5.4.20.0170.05316.50
5.4.10.0030.05016.40
5.4.00.0100.05315.89
5.3.290.0060.04312.80
5.3.280.0070.07314.50
5.3.270.0170.05714.38
5.3.260.0100.05314.46
5.3.250.0170.06314.75
5.3.240.0100.04714.62
5.3.230.0100.05714.47
5.3.220.0130.05314.57
5.3.210.0070.05714.72
5.3.200.0130.05714.66
5.3.190.0200.05314.58
5.3.180.0030.07314.41
5.3.170.0070.05314.59
5.3.160.0070.05714.57
5.3.150.0000.06014.55
5.3.140.0030.06314.57
5.3.130.0100.05014.64
5.3.120.0030.06014.61
5.3.110.0100.06014.25
5.3.100.0070.05014.05
5.3.90.0100.06313.86
5.3.80.0100.06013.95
5.3.70.0030.06713.71
5.3.60.0070.05713.84
5.3.50.0000.05314.09
5.3.40.0000.07714.04
5.3.30.0070.06014.00
5.3.20.0070.06713.72
5.3.10.0200.04013.59
5.3.00.0130.06313.41
5.2.170.0130.04711.05
5.2.160.0070.04011.04
5.2.150.0000.06311.14
5.2.140.0100.05311.04
5.2.130.0030.06311.11
5.2.120.0000.06011.00
5.2.110.0030.05310.86
5.2.100.0000.05010.86
5.2.90.0100.05011.01
5.2.80.0000.05010.85
5.2.70.0030.06311.01
5.2.60.0100.04710.95
5.2.50.0100.04010.91
5.2.40.0000.05011.09
5.2.30.0070.05011.06
5.2.20.0070.05710.87
5.2.10.0130.04010.80
5.2.00.0070.05710.69
5.1.60.0030.05310.22
5.1.50.0070.0339.99
5.1.40.0030.0479.93
5.1.30.0100.04310.41
5.1.20.0030.05310.34
5.1.10.0130.03010.25
5.1.00.0130.0439.98
5.0.50.0070.0338.54
5.0.40.0000.0408.36
5.0.30.0000.0438.41
5.0.20.0070.0338.16
5.0.10.0100.0308.22
5.0.00.0030.0578.21
4.4.90.0000.0307.26
4.4.80.0030.0207.26
4.4.70.0000.0307.26
4.4.60.0000.0277.26
4.4.50.0070.0237.26
4.4.40.0070.0337.26
4.4.30.0000.0337.26
4.4.20.0000.0337.26
4.4.10.0000.0337.26
4.4.00.0070.0437.26
4.3.110.0030.0207.26
4.3.100.0000.0307.26
4.3.90.0030.0207.26
4.3.80.0030.0437.26
4.3.70.0070.0277.26
4.3.60.0030.0207.26
4.3.50.0000.0237.26
4.3.40.0030.0337.26
4.3.30.0000.0237.26
4.3.20.0030.0277.26
4.3.10.0030.0277.26
4.3.00.0100.0206.77

preferences:
47.3 ms | 401 KiB | 5 Q