3v4l.org

run code in 300+ PHP versions simultaneously
<?php $text="tafadzwarutsvara"; $search_char="a"; $count="0"; for($x="0"; $x<strlen($text); $x++) { if(substr($text,$x,1)==$search_char) { $count=$count+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)
8.3.40.0040.01118.74
8.3.30.0170.00019.09
8.3.20.0070.00020.16
8.3.10.0040.00423.64
8.3.00.0050.00319.38
8.2.170.0140.00722.96
8.2.160.0100.00320.27
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0070.00022.14
8.2.110.0050.00522.44
8.2.100.0070.00317.84
8.2.90.0060.00319.17
8.2.80.0000.00817.97
8.2.70.0030.00617.75
8.2.60.0000.00818.03
8.2.50.0040.00418.07
8.2.40.0060.00319.95
8.2.30.0030.00618.00
8.2.20.0040.00417.87
8.2.10.0000.00718.07
8.2.00.0080.00017.72
8.1.270.0090.00023.96
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0030.00623.79
8.1.230.0070.00419.21
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0070.00317.35
8.1.190.0000.00817.22
8.1.180.0030.00619.01
8.1.170.0090.00018.57
8.1.160.0030.00521.93
8.1.150.0000.00718.60
8.1.140.0000.00717.35
8.1.130.0000.00717.75
8.1.120.0030.00317.52
8.1.110.0000.00817.47
8.1.100.0030.00517.49
8.1.90.0000.00717.46
8.1.80.0000.00717.44
8.1.70.0030.00317.43
8.1.60.0050.00317.53
8.1.50.0040.00417.39
8.1.40.0030.00617.40
8.1.30.0040.00417.59
8.1.20.0040.00417.54
8.1.10.0050.00217.47
8.1.00.0050.00317.34
8.0.300.0000.00818.77
8.0.290.0000.00717.04
8.0.280.0030.00318.45
8.0.270.0070.00017.16
8.0.260.0040.00417.32
8.0.250.0000.00617.08
8.0.240.0030.00316.98
8.0.230.0040.00416.93
8.0.220.0030.00316.82
8.0.210.0000.00816.97
8.0.200.0000.00617.07
8.0.190.0030.00316.98
8.0.180.0000.00717.00
8.0.170.0030.00716.89
8.0.160.0000.00716.84
8.0.150.0000.00716.88
8.0.140.0000.00716.82
8.0.130.0030.00313.34
8.0.120.0030.00516.78
8.0.110.0040.00416.80
8.0.100.0040.00416.77
8.0.90.0040.00416.94
8.0.80.0040.01016.91
8.0.70.0000.00716.88
8.0.60.0070.00016.82
8.0.50.0000.00716.74
8.0.30.0100.00917.00
8.0.20.0090.00917.40
8.0.10.0000.00717.18
8.0.00.0120.00616.80
7.4.330.0030.00315.00
7.4.320.0000.00716.51
7.4.300.0030.00316.60
7.4.290.0030.00316.55
7.4.280.0030.00716.63
7.4.270.0040.00416.49
7.4.260.0040.00416.50
7.4.250.0000.00716.46
7.4.240.0000.00716.55
7.4.230.0000.00716.59
7.4.220.0140.00916.63
7.4.210.0120.00416.49
7.4.200.0000.00716.50
7.4.190.0070.00016.58
7.4.160.0090.00616.45
7.4.150.0070.01417.40
7.4.140.0050.01217.86
7.4.130.0100.00716.56
7.4.120.0050.01216.39
7.4.110.0090.00916.47
7.4.100.0070.01616.53
7.4.90.0110.00616.57
7.4.80.0160.00819.39
7.4.70.0120.00916.30
7.4.60.0110.00516.17
7.4.50.0040.00416.57
7.4.40.0000.01616.54
7.4.30.0090.00716.53
7.4.00.0060.00814.78
7.3.330.0000.00513.06
7.3.320.0000.00613.25
7.3.310.0070.00016.46
7.3.300.0070.00016.35
7.3.290.0070.01016.45
7.3.280.0130.00516.33
7.3.270.0070.01017.40
7.3.260.0120.00616.39
7.3.250.0100.00816.34
7.3.240.0070.01016.46
7.3.230.0060.01016.39
7.3.210.0080.00816.23
7.3.200.0120.00619.39
7.3.190.0070.01316.34
7.3.180.0090.00616.58
7.3.170.0030.01216.43
7.3.160.0100.00616.41
7.3.120.0000.01715.05
7.2.330.0150.00316.71
7.2.320.0040.01516.66
7.2.310.0110.00416.55
7.2.300.0040.01416.74
7.2.290.0100.01316.61
7.2.00.0070.00719.58
7.1.100.0000.01118.25
7.1.70.0060.00317.06
7.1.60.0140.01019.46
7.1.50.0040.01916.68
7.1.00.0000.08022.37
7.0.200.0070.00016.64
7.0.140.0070.07022.10
7.0.60.0030.09319.79
7.0.50.0070.06717.82
7.0.40.0070.04020.27
7.0.30.1730.04320.20
7.0.20.0270.08019.99
7.0.10.0070.08320.00
7.0.00.0100.08020.01
5.6.280.0030.07321.13
5.6.210.0070.08020.76
5.6.200.0100.07018.21
5.6.190.0070.08720.56
5.6.180.0130.08720.49
5.6.170.0200.08720.48
5.6.160.0030.08720.54
5.6.150.0130.07318.13
5.6.140.0030.08318.07
5.6.130.0070.03718.21
5.6.120.0170.07021.02
5.6.110.0030.09021.04
5.6.100.0100.08021.02
5.6.90.0070.08021.10
5.6.80.0030.06020.36
5.5.350.4170.04320.44
5.5.340.0130.07017.98
5.5.330.0000.04720.23
5.5.320.0200.04320.51
5.5.310.0370.04320.30
5.5.300.0100.08017.91
5.5.290.0100.07717.94
5.5.280.0130.04720.84
5.5.270.0270.06020.86
5.5.260.0130.08320.77
5.5.250.0030.06720.70
5.5.240.0030.05720.17
5.4.450.0630.06719.33
5.4.440.0800.06719.41
5.4.430.0870.05719.52
5.4.420.0670.06719.64
5.4.410.0800.05319.42
5.4.400.0900.05718.78
5.4.390.1070.04019.21
5.4.380.0070.06018.59
5.4.370.0070.06018.65
5.4.360.0200.04318.66
5.4.350.0100.05718.72
5.4.340.0170.04718.71
5.4.320.0060.03712.46
5.4.310.0040.04512.45
5.4.300.0070.04412.45
5.4.290.0120.05812.45
5.4.280.0140.07612.35
5.4.270.0100.05912.35
5.4.260.0090.06312.35
5.4.250.0120.05312.35
5.4.240.0140.09812.35
5.4.230.0090.04912.34
5.4.220.0060.03912.34
5.4.210.0040.03912.34
5.4.200.0100.04412.34
5.4.190.0070.04812.34
5.4.180.0090.03512.34
5.4.170.0070.03712.35
5.4.160.0060.03712.34
5.4.150.0090.03712.34
5.4.140.0130.04612.03
5.4.130.0080.05512.02
5.4.120.0060.05811.97
5.4.110.0080.03711.97
5.4.100.0200.04511.97
5.4.90.0120.06711.97
5.4.80.0110.05711.96
5.4.70.0080.04911.96
5.4.60.0080.07011.96
5.4.50.0140.08011.96
5.4.40.0110.05711.95
5.4.30.0090.05511.95
5.4.20.0090.06911.95
5.4.10.0110.07411.95
5.4.00.0310.08311.44
5.3.290.0070.04312.80
5.3.280.0090.05012.71
5.3.270.0140.04412.72
5.3.260.0150.05912.72
5.3.250.0140.04712.72
5.3.240.0170.05412.71
5.3.230.0130.05812.71
5.3.220.0080.06612.68
5.3.210.0130.06512.68
5.3.200.0080.05612.68
5.3.190.0080.05212.68
5.3.180.0150.07012.67
5.3.170.0120.06012.67
5.3.160.0100.06612.67
5.3.150.0080.05912.67
5.3.140.0160.06512.66
5.3.130.0090.05512.66
5.3.120.0100.07412.66
5.3.110.0100.06412.66
5.3.100.0100.04312.12
5.3.90.0030.04412.08
5.3.80.0060.04312.08
5.3.70.0110.06712.08
5.3.60.0120.07512.06
5.3.50.0110.05212.00
5.3.40.0110.04612.00
5.3.30.0080.06011.94
5.3.20.0090.04711.72
5.3.10.0100.04711.69
5.3.00.0100.04611.68
5.2.170.0130.0629.18
5.2.160.0090.0429.18
5.2.150.0050.0479.17
5.2.140.0100.0419.17
5.2.130.0110.0399.13
5.2.120.0140.0499.13
5.2.110.0090.0499.14
5.2.100.0110.0629.14
5.2.90.0140.0699.14
5.2.80.0150.0469.13
5.2.70.0100.0569.13
5.2.60.0100.0439.09
5.2.50.0070.0509.06
5.2.40.0080.0429.03
5.2.30.0080.0539.00
5.2.20.0170.0799.00
5.2.10.0150.0548.93
5.2.00.0290.0708.79
5.1.60.0150.0638.08
5.1.50.0120.0698.07
5.1.40.0110.0568.05
5.1.30.0090.0648.41
5.1.20.0070.0298.43
5.1.10.0050.0328.15
5.1.00.0110.0348.15
5.0.50.0110.0406.63
5.0.40.0110.0496.49
5.0.30.0080.0426.30
5.0.20.0160.0476.27
5.0.10.0060.0536.25
5.0.00.0080.0596.25
4.4.90.0080.0354.78
4.4.80.0080.0344.75
4.4.70.0080.0274.75
4.4.60.0080.0364.75
4.4.50.0110.0594.77
4.4.40.0170.0934.71
4.4.30.0150.0424.76
4.4.20.0120.0464.85
4.4.10.0030.0564.85
4.4.00.0080.0664.76
4.3.110.0060.0444.67
4.3.100.0050.0374.66
4.3.90.0060.0414.63
4.3.80.0140.0644.58
4.3.70.0100.0394.63
4.3.60.0090.0354.63
4.3.50.0100.0394.63
4.3.40.0020.0514.54
4.3.30.0040.0243.30
4.3.20.0050.0253.27
4.3.10.0090.0373.24
4.3.00.0000.0239.38

preferences:
45.48 ms | 400 KiB | 5 Q