3v4l.org

run code in 300+ PHP versions simultaneously
<?php $text="w3resource"; $search_char="r"; $count="0"; for($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)
8.3.40.0150.00419.02
8.3.30.0110.00419.27
8.3.20.0000.00820.33
8.3.10.0040.00423.65
8.3.00.0080.00019.38
8.2.170.0090.00622.96
8.2.160.0130.00020.57
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0040.00422.08
8.2.110.0070.00320.53
8.2.100.0090.00319.64
8.2.90.0080.00018.91
8.2.80.0060.00317.97
8.2.70.0060.00317.38
8.2.60.0000.00818.04
8.2.50.0030.00518.07
8.2.40.0030.00619.84
8.2.30.0100.00018.12
8.2.20.0080.00017.85
8.2.10.0040.00418.04
8.2.00.0040.00417.78
8.1.270.0060.00323.88
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0040.00423.92
8.1.230.0080.00317.58
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0040.00417.35
8.1.190.0030.00517.00
8.1.180.0000.00818.89
8.1.170.0080.00018.56
8.1.160.0040.00421.93
8.1.150.0050.00318.75
8.1.140.0070.00017.45
8.1.130.0030.00317.82
8.1.120.0050.00317.39
8.1.110.0040.00417.46
8.1.100.0000.00817.48
8.1.90.0000.00717.44
8.1.80.0040.00417.43
8.1.70.0000.00717.42
8.1.60.0030.00617.56
8.1.50.0040.00417.46
8.1.40.0070.00017.38
8.1.30.0050.00317.49
8.1.20.0040.00417.57
8.1.10.0040.00417.52
8.1.00.0040.00417.44
8.0.300.0070.00018.77
8.0.290.0080.00016.75
8.0.280.0080.00018.45
8.0.270.0050.00317.16
8.0.260.0030.00317.19
8.0.250.0050.00216.98
8.0.240.0040.00417.04
8.0.230.0000.00817.07
8.0.220.0030.00316.98
8.0.210.0070.00016.92
8.0.200.0040.00416.94
8.0.190.0000.00817.02
8.0.180.0000.00717.02
8.0.170.0040.00416.90
8.0.160.0000.00716.85
8.0.150.0030.00316.94
8.0.140.0000.00816.96
8.0.130.0000.00613.34
8.0.120.0000.00816.89
8.0.110.0020.00516.95
8.0.100.0070.00017.02
8.0.90.0040.00417.02
8.0.80.0090.00616.89
8.0.70.0020.00516.86
8.0.60.0080.00017.07
8.0.50.0040.00416.78
8.0.30.0040.01617.14
8.0.20.0100.00917.40
8.0.10.0000.00716.99
8.0.00.0080.01016.88
7.4.330.0000.00615.00
7.4.320.0000.00616.58
7.4.300.0030.00316.48
7.4.290.0060.00016.59
7.4.280.0050.00316.50
7.4.270.0000.00716.64
7.4.260.0000.00716.42
7.4.250.0000.00716.43
7.4.240.0050.00216.61
7.4.230.0070.00016.61
7.4.220.0070.01416.70
7.4.210.0120.00416.50
7.4.200.0000.00716.66
7.4.190.0000.00716.37
7.4.160.0060.00916.65
7.4.150.0110.00617.40
7.4.140.0080.01117.86
7.4.130.0050.01116.45
7.4.120.0100.00716.54
7.4.110.0100.00716.54
7.4.100.0040.01816.57
7.4.90.0160.00016.31
7.4.80.0120.00919.39
7.4.70.0120.00316.53
7.4.60.0120.00316.49
7.4.50.0000.00516.30
7.4.40.0100.00716.52
7.4.30.0100.00716.46
7.4.00.0020.01515.09
7.3.330.0000.00613.16
7.3.320.0050.00013.15
7.3.310.0070.00016.33
7.3.300.0040.00416.34
7.3.290.0170.00316.36
7.3.280.0110.00816.36
7.3.270.0100.00717.40
7.3.260.0120.00916.28
7.3.250.0100.00916.40
7.3.240.0100.01316.56
7.3.230.0130.00316.39
7.3.210.0100.00716.33
7.3.200.0180.00019.39
7.3.190.0090.01216.43
7.3.180.0100.00716.43
7.3.170.0120.00316.36
7.3.160.0060.00916.33
7.3.120.0040.01314.91
7.3.110.0070.01114.83
7.3.100.0130.00314.52
7.3.90.0030.01014.97
7.3.80.0070.00414.70
7.3.70.0070.00314.64
7.3.60.0100.00314.46
7.3.50.0000.01414.94
7.3.40.0040.00814.92
7.3.30.0060.00914.80
7.3.20.0130.00316.54
7.3.10.0090.00016.64
7.3.00.0150.00016.71
7.2.330.0100.00716.68
7.2.320.0080.01416.51
7.2.310.0090.00916.59
7.2.300.0040.01216.29
7.2.290.0100.01316.59
7.2.250.0070.01015.22
7.2.240.0040.01515.29
7.2.230.0030.01315.25
7.2.220.0090.00614.68
7.2.210.0070.00714.78
7.2.200.0040.01215.11
7.2.190.0110.00714.95
7.2.180.0030.01314.91
7.2.170.0090.00914.99
7.2.160.0080.00814.66
7.2.150.0060.01017.06
7.2.140.0070.00416.91
7.2.130.0000.01317.13
7.2.120.0000.01517.05
7.2.110.0070.00317.05
7.2.100.0030.01516.68
7.2.90.0030.01017.13
7.2.80.0050.00816.88
7.2.70.0060.00916.63
7.2.60.0020.01616.85
7.2.50.0060.00916.81
7.2.40.0110.00316.88
7.2.30.0070.00716.65
7.2.20.0110.00716.72
7.2.10.0120.00016.92
7.2.00.0070.00518.15
7.1.330.0140.00315.88
7.1.320.0120.00315.62
7.1.310.0060.00315.72
7.1.300.0070.01016.05
7.1.290.0070.00416.02
7.1.280.0060.00615.59
7.1.270.0080.00415.61
7.1.260.0030.00915.83
7.1.250.0000.01415.67
7.1.240.0030.00615.74
7.1.230.0000.01215.87
7.1.220.0060.00815.99
7.1.210.0000.01315.93
7.1.200.0030.01115.72
7.1.190.0060.01015.53
7.1.180.0090.00615.84
7.1.170.0100.00315.71
7.1.160.0030.01015.84
7.1.150.0120.00615.96
7.1.140.0100.00315.68
7.1.130.0040.01115.93
7.1.120.0030.01415.52
7.1.110.0090.00615.96
7.1.100.0110.00317.15
7.1.90.0030.00815.54
7.1.80.0090.00315.79
7.1.70.0020.01016.40
7.1.60.0070.01117.64
7.1.50.0120.01016.29
7.1.40.0000.01315.78
7.1.30.0040.00815.86
7.1.20.0040.01115.79
7.1.10.0100.00315.76
7.1.00.0050.04018.89
7.0.330.0000.01415.42
7.0.320.0000.01615.40
7.0.310.0000.01415.44
7.0.300.0070.00315.12
7.0.290.0060.00915.42
7.0.280.0040.00815.50
7.0.270.0070.00715.52
7.0.260.0060.00615.45
7.0.250.0110.00015.48
7.0.240.0030.00715.30
7.0.230.0090.00015.47
7.0.220.0000.01515.50
7.0.210.0110.00715.55
7.0.200.0050.00716.06
7.0.190.0070.00715.26
7.0.180.0060.00615.24
7.0.170.0000.01415.51
7.0.160.0070.00715.52
7.0.150.0110.00415.46
7.0.140.0030.04018.63
7.0.130.0040.00715.47
7.0.120.0060.00615.61
7.0.110.0100.00315.42
7.0.100.0000.01315.56
7.0.90.0090.00015.39
7.0.80.0090.03317.76
7.0.70.0220.02217.76
7.0.60.0140.04517.73
7.0.50.0080.02318.01
7.0.40.0060.02816.87
7.0.30.0010.02816.87
7.0.20.0070.02216.83
7.0.10.0050.02216.88
7.0.00.0040.02916.90
5.6.400.0100.00314.56
5.6.390.0070.00714.38
5.6.380.0060.01014.44
5.6.370.0000.01214.24
5.6.360.0060.00914.28
5.6.350.0090.00614.41
5.6.340.0140.00314.10
5.6.330.0030.01014.60
5.6.320.0100.00314.31
5.6.310.0030.01514.64
5.6.300.0090.00914.45
5.6.290.0050.00514.36
5.6.280.0070.03817.47
5.6.270.0000.00914.58
5.6.260.0040.00414.45
5.6.250.0060.00914.40
5.6.240.0070.00314.34
5.6.230.0160.03817.46
5.6.220.0120.03717.51
5.6.210.0060.03817.55
5.6.200.0020.04417.79
5.6.190.0060.02517.73
5.6.180.0070.02217.75
5.6.170.0070.02417.57
5.6.160.0100.03717.61
5.6.150.0080.02817.73
5.6.140.0110.03817.70
5.6.130.0070.04317.80
5.6.120.0070.02117.74
5.6.110.0050.02717.56
5.6.100.0050.02817.67
5.6.90.0030.02717.55
5.6.80.0040.02417.47
5.6.70.0050.02117.49
5.6.60.0050.02317.47
5.6.50.0110.02317.33
5.6.40.0050.02617.28
5.6.30.0020.02917.25
5.6.20.0050.02317.26
5.6.10.0090.02017.22
5.6.00.0050.02217.27
5.5.380.0040.01214.54
5.5.370.0080.02217.30
5.5.360.0070.02317.46
5.5.350.0030.04717.24
5.5.340.0020.02917.58
5.5.330.0000.03117.58
5.5.320.0070.02517.39
5.5.310.0060.02317.51
5.5.300.0080.04417.54
5.5.290.0080.04317.59
5.5.280.0040.04617.55
5.5.270.0070.02217.58
5.5.260.0050.03817.34
5.5.250.0090.01817.46
5.5.240.0020.02417.12
5.5.230.0080.02317.33
5.5.220.0120.01817.15
5.5.210.0050.02217.31
5.5.200.0070.02017.01
5.5.190.0030.02817.25
5.5.180.0030.02717.29
5.5.170.0030.01014.02
5.5.160.0050.02317.20
5.5.150.0020.03117.24
5.5.140.0020.02717.10
5.5.130.0030.02417.16
5.5.120.0080.03117.21
5.5.110.0020.02517.20
5.5.100.0010.02117.22
5.5.90.0030.02317.21
5.5.80.0070.04017.29
5.5.70.0020.04317.04
5.5.60.0050.04617.06
5.5.50.0020.03916.96
5.5.40.0040.04517.24
5.5.30.0070.02317.18
5.5.20.0050.04017.06
5.5.10.0080.04317.13
5.5.00.0050.04716.88
5.4.450.0120.03616.13
5.4.440.0070.02816.18
5.4.430.0030.02216.12
5.4.420.0030.02316.07
5.4.410.0050.02316.11
5.4.400.0050.02315.89
5.4.390.0040.03015.89
5.4.380.0090.01815.92
5.4.370.0090.02715.88
5.4.360.0080.02616.01
5.4.350.0050.03815.81
5.4.340.0030.02015.96
5.4.330.0070.00012.80
5.4.320.0030.02115.93
5.4.310.0070.01816.01
5.4.300.0030.02215.79
5.4.290.0010.02115.95
5.4.280.0050.01816.01
5.4.270.0030.02015.80
5.4.260.0060.02116.01
5.4.250.0060.02115.92
5.4.240.0080.03515.92
5.4.230.0110.02315.90
5.4.220.0030.04316.01
5.4.210.0120.03715.89
5.4.200.0110.03815.88
5.4.190.0030.02715.97
5.4.180.0060.02515.94
5.4.170.0050.04215.96
5.4.160.0050.02515.94
5.4.150.0030.03415.94
5.4.140.0080.03314.54
5.4.130.0050.03814.58
5.4.120.0080.03214.54
5.4.110.0060.03414.61
5.4.100.0020.02814.56
5.4.90.0070.03814.57
5.4.80.0050.03914.50
5.4.70.0080.04514.52
5.4.60.0050.03714.54
5.4.50.0050.03814.61
5.4.40.0070.03614.54
5.4.30.0040.04014.59
5.4.20.0030.03514.56
5.4.10.0070.04214.49
5.4.00.0060.02114.30
5.3.290.0030.07314.62
5.3.280.0130.06714.58
5.3.270.0130.06714.47
5.3.260.0030.08314.48
5.3.250.0000.04314.60
5.3.240.0070.07314.51
5.3.230.0100.07014.57
5.3.220.0030.08314.56
5.3.210.0100.06014.38
5.3.200.0030.05014.55
5.3.190.0070.07714.55
5.3.180.0030.04314.55
5.3.170.0030.05714.52
5.3.160.0100.05714.47
5.3.150.0030.06714.38
5.3.140.0100.06714.56
5.3.130.0130.04714.36
5.3.120.0100.04314.48
5.3.110.0070.06714.50
5.3.100.0100.08014.01
5.3.90.0170.06014.01
5.3.80.0070.05013.97
5.3.70.0200.04314.02
5.3.60.0070.05313.96
5.3.50.0070.04713.93
5.3.40.0100.04713.88
5.3.30.0000.05013.77
5.3.20.0070.05713.59
5.3.10.0030.05313.64
5.3.00.0100.07013.62
5.2.170.0000.03311.86
5.2.160.0100.04711.86
5.2.150.0070.05711.86
5.2.140.0030.03711.86
5.2.130.0070.06011.86
5.2.120.0030.06011.86
5.2.110.0030.06311.86
5.2.100.0070.03311.86
5.2.90.0070.02711.86
5.2.80.0030.03011.86
5.2.70.0070.05011.86
5.2.60.0070.03311.86
5.2.50.0070.06011.86
5.2.40.0030.03011.86
5.2.30.0030.06311.86
5.2.20.0130.05711.86
5.2.10.0030.03311.86
5.2.00.0070.04011.86
5.1.60.0100.05011.86
5.1.50.0070.05711.86
5.1.40.0000.04711.86
5.1.30.0070.05711.86
5.1.20.0070.05711.86
5.1.10.0070.02711.86
5.1.00.0030.04011.86
5.0.50.0030.03311.86
5.0.40.0070.03711.86
5.0.30.0030.04311.86
5.0.20.0030.04711.86
5.0.10.0030.03011.86
5.0.00.0070.06011.86
4.4.90.0000.02711.86
4.4.80.0070.03311.86
4.4.70.0000.02311.86
4.4.60.0030.03311.86
4.4.50.0070.01311.86
4.4.40.0030.03011.86
4.4.30.0030.02711.86
4.4.20.0000.03011.86
4.4.10.0030.03311.86
4.4.00.0030.03311.86
4.3.110.0070.01711.86
4.3.100.0030.03311.86
4.3.90.0030.02311.86
4.3.80.0000.03011.86
4.3.70.0000.03711.86
4.3.60.0100.02711.86
4.3.50.0000.03311.86
4.3.40.0100.03011.86
4.3.30.0000.03011.86
4.3.20.0030.02011.86
4.3.10.0000.03711.86
4.3.00.0000.02711.86

preferences:
46.36 ms | 400 KiB | 5 Q