3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr_count("asdf\0..", ".");

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)
8.3.60.0070.00716.50
8.3.50.0120.00316.36
8.3.40.0070.00718.61
8.3.30.0000.01418.62
8.3.20.0030.00620.20
8.3.10.0040.00421.73
8.3.00.0080.00019.14
8.2.180.0060.00917.88
8.2.170.0060.01022.96
8.2.160.0040.01120.48
8.2.150.0090.00024.18
8.2.140.0000.00824.66
8.2.130.0070.00019.45
8.2.120.0080.00026.35
8.2.110.0100.00022.16
8.2.100.0060.00617.66
8.2.90.0000.00817.63
8.2.80.0040.00418.78
8.2.70.0000.00817.68
8.2.60.0040.00417.50
8.2.50.0040.00417.55
8.2.40.0000.00820.42
8.2.30.0000.00819.23
8.2.20.0000.00718.03
8.2.10.0080.00017.95
8.2.00.0000.00717.91
8.1.280.0130.00725.92
8.1.270.0000.00821.95
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0000.00920.61
8.1.230.0080.00417.70
8.1.220.0080.00017.74
8.1.210.0000.00918.77
8.1.200.0040.00417.10
8.1.190.0040.00417.10
8.1.180.0030.00518.10
8.1.170.0050.00318.58
8.1.160.0040.00418.97
8.1.150.0070.00020.40
8.1.140.0050.00319.36
8.1.130.0070.00018.80
8.1.120.0040.00417.30
8.1.110.0070.00017.27
8.1.100.0060.00317.32
8.1.90.0040.00417.24
8.1.80.0070.00017.29
8.1.70.0070.00017.25
8.1.60.0030.00517.34
8.1.50.0030.00517.41
8.1.40.0040.00417.34
8.1.30.0040.00417.44
8.1.20.0030.00617.44
8.1.10.0040.00417.46
8.1.00.0070.00017.37
8.0.300.0070.00018.77
8.0.290.0040.00416.63
8.0.280.0000.00718.41
8.0.270.0040.00417.17
8.0.260.0030.00316.66
8.0.250.0030.00316.95
8.0.240.0070.00316.90
8.0.230.0030.00316.85
8.0.220.0030.00316.77
8.0.210.0040.00416.76
8.0.200.0030.00316.81
8.0.190.0060.00316.79
8.0.180.0070.00016.67
8.0.170.0000.00816.80
8.0.160.0000.00716.75
8.0.150.0000.00716.61
8.0.140.0030.00316.69
8.0.130.0000.00613.11
8.0.120.0040.00416.64
8.0.110.0000.00816.64
8.0.100.0040.00416.77
8.0.90.0000.00716.81
8.0.80.0100.00616.67
8.0.70.0000.00716.86
8.0.60.0000.00716.82
8.0.50.0080.00016.75
8.0.30.0080.01017.04
8.0.20.0080.01017.40
8.0.10.0090.00016.70
8.0.00.0100.00716.55
7.4.330.0030.00315.55
7.4.320.0030.00316.45
7.4.300.0060.00016.35
7.4.290.0000.00716.50
7.4.280.0090.00016.35
7.4.270.0000.00716.35
7.4.260.0070.00316.30
7.4.250.0030.00316.45
7.4.240.0030.00316.39
7.4.230.0070.00016.18
7.4.220.0140.00616.47
7.4.210.0040.01116.53
7.4.200.0030.00316.28
7.4.160.0090.00616.30
7.4.150.0070.01017.40
7.4.140.0130.00617.86
7.4.130.0130.00716.49
7.4.120.0140.00816.43
7.4.110.0100.00716.34
7.4.100.0090.01216.47
7.4.90.0090.00916.33
7.4.80.0100.01719.39
7.4.70.0030.01316.50
7.4.60.0070.01016.38
7.4.50.0090.00316.42
7.4.40.0140.00316.40
7.4.30.0090.01516.27
7.4.00.0080.01014.79
7.3.330.0020.00212.95
7.3.320.0000.00512.86
7.3.310.0040.00416.09
7.3.300.0030.00316.16
7.3.290.0140.00816.15
7.3.280.0090.00816.07
7.3.270.0090.00817.40
7.3.260.0070.01116.56
7.3.250.0100.01016.20
7.3.240.0110.00716.31
7.3.230.0060.01016.20
7.3.210.0100.00716.15
7.3.200.0110.01216.39
7.3.190.0180.00616.48
7.3.180.0150.00316.30
7.3.170.0040.01216.39
7.3.160.0140.00716.51
7.3.120.0090.00614.56
7.3.110.0080.01014.63
7.3.100.0040.00914.71
7.3.90.0020.01214.66
7.3.80.0030.01014.70
7.3.70.0060.00914.84
7.3.60.0100.00314.75
7.3.50.0020.01114.48
7.3.40.0020.01014.70
7.3.30.0030.01214.53
7.3.20.0040.00816.69
7.3.10.0050.00716.57
7.3.00.0050.00716.44
7.2.330.0090.00916.42
7.2.320.0080.01116.24
7.2.310.0080.00816.44
7.2.300.0100.00716.56
7.2.290.0100.00616.38
7.2.250.0070.01114.80
7.2.240.0080.00814.63
7.2.230.0050.01014.92
7.2.220.0090.00614.69
7.2.210.0050.00814.81
7.2.200.0100.00314.88
7.2.190.0100.00814.89
7.2.180.0090.00814.96
7.2.170.0070.01014.92
7.2.160.0080.00815.05
7.2.150.0060.00616.68
7.2.140.0080.00416.79
7.2.130.0110.00216.69
7.2.120.0080.00616.53
7.2.110.0070.00716.61
7.2.100.0060.01116.60
7.2.90.0320.00515.77
7.2.80.0470.00616.14
7.2.70.0470.00916.06
7.2.60.0250.01016.18
7.2.50.0510.00616.23
7.2.40.0370.00316.08
7.2.30.0480.01016.22
7.2.20.0160.01016.02
7.2.10.0080.00616.15
7.2.00.0080.00616.18
7.1.330.0070.00915.66
7.1.320.0050.00615.77
7.1.310.0050.00715.50
7.1.300.0020.00915.55
7.1.290.0040.00815.60
7.1.280.0050.01115.58
7.1.270.0030.01115.57
7.1.260.0100.00115.57
7.1.250.0040.00715.39
7.1.210.0800.00713.79
7.1.200.0560.01013.99
7.1.190.0100.00713.88
7.1.180.0700.00313.76
7.1.170.1160.00013.87
7.1.160.0190.00613.88
7.1.150.0230.00713.84
7.1.140.0230.00313.75
7.1.130.0070.00713.68
7.1.120.0080.00513.67
7.1.110.0030.01313.88
7.1.100.0210.00713.74
7.1.90.1370.00713.90
7.1.80.0940.00613.62
7.1.70.0130.00013.81
7.1.60.0370.00031.77
7.1.50.0530.01231.98
7.1.40.0380.01331.61
7.1.30.0260.01531.82
7.1.20.0870.01831.51
7.1.10.0060.00913.74
7.1.00.0150.00013.59
7.0.310.1010.00313.39
7.0.300.0040.01113.64
7.0.290.0100.00713.21
7.0.280.1210.00613.28
7.0.270.0830.00313.31
7.0.260.0330.00713.38
7.0.250.0070.01013.20
7.0.240.0800.01413.43
7.0.230.1260.00713.28
7.0.220.1610.00013.49
7.0.210.0110.00513.50
7.0.200.0160.00413.31
7.0.190.0100.00313.57
7.0.180.0250.00813.45
7.0.170.0050.00713.39
7.0.160.0120.00613.52
7.0.150.0280.00713.52
7.0.140.1060.00413.24
7.0.130.0100.00413.34
7.0.120.0140.00013.39
7.0.110.1290.00613.52
7.0.100.1240.00613.36
7.0.90.1290.00313.45
7.0.80.1630.00613.38
7.0.70.0170.00713.37
7.0.60.0150.00313.15
7.0.50.0500.00013.46
7.0.40.0070.01013.46
7.0.30.0190.01313.63
7.0.20.0090.00613.50
7.0.10.0340.00513.33
7.0.00.0470.00313.41

preferences:
42.22 ms | 401 KiB | 5 Q