3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "-Lorem Ipsum"; // 1 //$string = "--Lorem Ipsum"; // 2 //$string = "---Lorem Ipsum"; // 3 //$string = "--Lorem-Ipsum"; // 2 echo substr_count($string, '-'); // 3

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
8.3.50.0110.00522.74
8.3.40.0060.00918.67
8.3.30.0030.01018.98
8.3.20.0030.00620.09
8.3.10.0070.00321.24
8.3.00.0050.00319.38
8.2.180.0150.00018.16
8.2.170.0110.00322.96
8.2.160.0060.00920.52
8.2.150.0140.00024.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0000.01020.82
8.2.110.0040.00719.52
8.2.100.0110.00017.78
8.2.90.0000.00817.91
8.2.80.0060.00317.97
8.2.70.0040.00417.93
8.2.60.0060.00317.93
8.2.50.0000.00918.10
8.2.40.0030.00620.47
8.2.30.0030.00319.48
8.2.20.0000.00717.66
8.2.10.0070.00017.99
8.2.00.0030.00617.56
8.1.280.0140.00425.92
8.1.270.0040.00423.91
8.1.260.0030.00626.35
8.1.250.0000.00728.09
8.1.240.0100.01023.92
8.1.230.0110.00020.95
8.1.220.0000.00817.74
8.1.210.0000.00918.90
8.1.200.0090.00017.10
8.1.190.0030.00517.10
8.1.180.0030.00518.10
8.1.170.0030.00618.54
8.1.160.0040.00421.89
8.1.150.0000.00818.80
8.1.140.0030.00517.41
8.1.130.0040.00417.86
8.1.120.0050.00317.29
8.1.110.0000.00817.39
8.1.100.0000.00817.39
8.1.90.0030.00317.43
8.1.80.0000.00817.43
8.1.70.0070.00017.33
8.1.60.0030.00617.44
8.1.50.0000.00717.45
8.1.40.0070.00017.41
8.1.30.0090.00017.47
8.1.20.0050.00317.59
8.1.10.0030.00617.48
8.1.00.0050.00217.31
8.0.300.0070.00020.02
8.0.290.0060.00316.75
8.0.280.0000.00718.37
8.0.270.0040.00417.13
8.0.260.0000.00717.26
8.0.250.0000.00816.85
8.0.240.0030.00316.90
8.0.230.0000.00716.83
8.0.220.0000.00716.78
8.0.210.0000.00716.80
8.0.200.0040.00416.91
8.0.190.0000.00816.84
8.0.180.0050.00316.85
8.0.170.0050.00316.82
8.0.160.0040.00416.91
8.0.150.0030.00516.65
8.0.140.0000.00716.65
8.0.130.0070.00013.20
8.0.120.0040.00416.76
8.0.110.0000.00716.77
8.0.100.0040.00316.63
8.0.90.0070.00016.83
8.0.80.0090.01216.76
8.0.70.0040.00416.70
8.0.60.0050.00516.59
8.0.50.0060.00316.70
8.0.30.0110.01117.03
8.0.20.0110.00817.40
8.0.10.0000.00716.81
8.0.00.0080.00916.65
7.4.330.0050.00015.00
7.4.320.0060.00016.43
7.4.300.0030.00316.51
7.4.290.0030.00316.36
7.4.280.0000.00716.52
7.4.270.0000.00716.54
7.4.260.0030.00616.50
7.4.250.0040.00416.25
7.4.240.0030.00316.48
7.4.230.0030.00316.59
7.4.220.0130.01316.55
7.4.210.0090.00616.45
7.4.200.0080.00016.62
7.4.160.0070.01416.18
7.4.150.0120.00617.40
7.4.140.0140.00617.86
7.4.130.0090.00816.45
7.4.120.0070.01016.40
7.4.110.0060.01116.46
7.4.100.0100.00616.30
7.4.90.0070.01016.34
7.4.80.0090.00919.39
7.4.70.0070.01016.51
7.4.60.0140.00416.26
7.4.50.0040.00416.32
7.4.40.0030.02016.23
7.4.30.0060.00916.37
7.4.00.0100.00715.07
7.3.330.0030.00312.88
7.3.320.0020.00213.03
7.3.310.0070.00016.13
7.3.300.0040.00416.11
7.3.290.0040.01116.16
7.3.280.0120.00516.15
7.3.270.0100.00717.40
7.3.260.0140.00316.36
7.3.250.0080.00816.22
7.3.240.0030.01316.31
7.3.230.0130.01016.42
7.3.210.0100.01016.19
7.3.200.0030.01419.39
7.3.190.0030.01816.19
7.3.180.0160.00016.47
7.3.170.0110.00716.27
7.3.160.0150.00316.36
7.3.00.0110.00416.46
7.2.330.0060.01216.56
7.2.320.0130.00316.62
7.2.310.0110.00516.61
7.2.300.0140.02716.49
7.2.290.0100.00616.54
7.2.130.0070.01016.43
7.2.120.0100.00616.66
7.2.110.0060.00316.79
7.2.100.0130.00016.75
7.2.90.0070.01016.71
7.2.80.0100.00716.85
7.2.70.0030.00616.65
7.2.60.0050.00916.79
7.2.50.0130.00716.59
7.2.40.0040.00816.85
7.2.30.0100.00316.50
7.2.20.0070.00716.73
7.2.10.0030.01016.70
7.2.00.0000.00916.80
7.1.250.0080.00615.63
7.1.240.0070.00715.73
7.1.230.0070.00415.60
7.1.220.0000.01215.48
7.1.210.0100.00315.46
7.1.200.0060.00815.54
7.1.190.0090.00615.71
7.1.180.0120.00315.62
7.1.170.0110.00415.30
7.1.160.0030.01015.63
7.1.150.0080.00315.76
7.1.140.0080.00415.80
7.1.130.0040.00715.76
7.1.120.0030.00915.64
7.1.110.0070.00715.65
7.1.100.0070.00415.70
7.1.90.0000.01215.44
7.1.80.0040.01115.53
7.1.70.0030.00616.30
7.1.60.0060.01017.62
7.1.50.0070.01216.31
7.1.40.0040.01115.64
7.1.30.0090.00615.59
7.1.20.0030.01215.63
7.1.10.0000.01315.65
7.1.00.0050.04019.10
7.0.330.0120.00015.23
7.0.320.0130.00315.21
7.0.310.0030.00915.21
7.0.300.0060.00615.10
7.0.290.0100.00315.13
7.0.280.0070.00715.20
7.0.270.0030.01015.09
7.0.260.0080.00315.30
7.0.250.0140.00315.41
7.0.240.0030.00715.20
7.0.230.0070.00715.52
7.0.220.0000.01115.30
7.0.210.0040.00815.48
7.0.200.0110.00515.11
7.0.190.0030.01015.49
7.0.180.0080.00315.32
7.0.170.0000.00715.52
7.0.160.0030.00515.33
7.0.150.0150.00015.28
7.0.140.0010.04318.68
7.0.130.0030.00715.34
7.0.120.0030.00615.31
7.0.110.0060.00315.27
7.0.100.0060.00615.16
7.0.90.0030.00615.43
7.0.80.0120.00315.25
7.0.70.0040.00715.42
7.0.60.0020.02717.50
7.0.50.0050.02416.57
7.0.40.0000.02816.78
7.0.30.0280.03516.64
7.0.20.0100.04516.79
7.0.10.0050.04816.82
7.0.00.0080.03816.70
5.6.380.0030.00914.16
5.6.370.0090.00014.02
5.6.360.0090.00414.19
5.6.350.0070.00714.21
5.6.340.0000.01314.43
5.6.330.0030.00914.16
5.6.320.0000.01314.27
5.6.310.0060.00614.10
5.6.300.0040.00814.45
5.6.290.0030.01014.46
5.6.280.0050.04017.61
5.6.270.0040.00714.18
5.6.260.0080.00414.49
5.6.250.0060.00613.95
5.6.240.0030.01014.30
5.6.230.0000.00714.27
5.6.220.0040.00414.10
5.6.210.0050.03117.42
5.6.200.0030.04116.19
5.6.190.0070.02417.32
5.6.180.0300.03717.39
5.6.170.0120.02217.32
5.6.160.0050.03317.26
5.6.150.0070.04416.17
5.6.140.0060.03616.14
5.6.130.0020.02616.17
5.6.120.0080.03717.31
5.6.110.0060.03817.56
5.6.100.0050.04417.64
5.6.90.0100.03517.57
5.6.80.0130.04217.24
5.6.70.0090.00014.14
5.6.60.0060.00614.16
5.6.50.0080.00414.21
5.6.40.0000.01513.86
5.6.30.0060.00313.95
5.6.20.0030.00713.98
5.6.10.0060.00614.34
5.6.00.0000.01514.14
5.5.380.0040.00411.18
5.5.370.0000.01111.18
5.5.360.0060.00311.18
5.5.350.0130.03715.84
5.5.340.0050.03914.54
5.5.330.0030.03815.68
5.5.320.0260.03115.67
5.5.310.0100.03715.69
5.5.300.0050.04414.58
5.5.290.0020.05014.54
5.5.280.0060.02215.91
5.5.270.0060.04516.00
5.5.260.0050.04715.96
5.5.250.0060.02315.98
5.5.240.0100.04315.66
5.5.230.0000.01011.18
5.5.220.0050.00511.18
5.5.210.0000.01011.18
5.5.200.0030.00711.18
5.5.190.0030.00711.18
5.5.180.0030.00911.18
5.5.170.0000.00811.18
5.5.160.0000.01111.18
5.5.150.0030.00911.18
5.5.140.0060.00611.18
5.5.130.0060.00611.18
5.5.120.0000.01011.18
5.5.110.0070.00711.18
5.5.100.0030.01011.18
5.5.90.0030.00711.18
5.5.80.0060.00611.18
5.5.70.0060.00011.18
5.5.60.0030.00311.18
5.5.50.0050.00511.18
5.5.40.0030.00711.18
5.5.30.0040.00411.18
5.5.20.0000.01111.18
5.5.10.0060.00611.18
5.5.00.0070.00311.18
5.4.450.0120.04515.29
5.4.440.0100.02715.32
5.4.430.0120.02515.33
5.4.420.0120.02915.14
5.4.410.0120.02515.09
5.4.400.0230.02215.16
5.4.390.0080.02715.21
5.4.380.0200.04514.95
5.4.370.0150.03614.97
5.4.360.0160.03514.91
5.4.350.0170.02814.97
5.4.340.0150.03314.83
5.4.330.0080.00411.18
5.4.320.0080.02211.81
5.4.310.0070.02211.81
5.4.300.0050.02211.81
5.4.290.0080.02211.81
5.4.280.0080.02111.76
5.4.270.0030.02211.76
5.4.260.0040.02711.76
5.4.250.0060.02111.76
5.4.240.0090.02111.76
5.4.230.0020.02311.76
5.4.220.0070.01811.76
5.4.210.0020.02511.76
5.4.200.0050.02111.76
5.4.190.0080.02111.76
5.4.180.0040.02511.75
5.4.170.0060.02111.76
5.4.160.0050.02111.76
5.4.150.0060.02511.76
5.4.140.0050.02511.60
5.4.130.0040.02211.59
5.4.120.0030.02311.57
5.4.110.0040.02511.57
5.4.100.0040.02311.57
5.4.90.0100.02311.57
5.4.80.0040.02911.57
5.4.70.0060.01911.57
5.4.60.0070.02711.57
5.4.50.0050.01911.57
5.4.40.0050.01911.56
5.4.30.0030.02511.56
5.4.20.0060.02211.56
5.4.10.0060.02011.56
5.4.00.0010.02911.31
5.3.290.0040.02511.99
5.3.280.0070.02311.94
5.3.270.0060.02311.95
5.3.260.0060.02611.95
5.3.250.0060.02011.95
5.3.240.0040.02411.95
5.3.230.0060.02311.94
5.3.220.0060.02111.93
5.3.210.0090.02011.93
5.3.200.0050.02211.93
5.3.190.0050.02011.93
5.3.180.0040.01911.93
5.3.170.0050.02311.92
5.3.160.0070.01911.92
5.3.150.0070.02111.92
5.3.140.0030.02211.92
5.3.130.0050.02111.92
5.3.120.0040.02411.92
5.3.110.0040.02511.92
5.3.100.0080.02211.64
5.3.90.0060.01911.63
5.3.80.0050.02611.63
5.3.70.0050.02111.63
5.3.60.0050.02011.62
5.3.50.0080.01911.59
5.3.40.0060.02411.59
5.3.30.0060.02011.56
5.3.20.0010.02311.45
5.3.10.0020.02211.43
5.3.00.0050.02211.43
5.2.170.0030.01710.18
5.2.160.0020.02110.18
5.2.150.0040.02110.18
5.2.140.0050.01910.17
5.2.130.0050.01510.15
5.2.120.0040.01710.15
5.2.110.0040.02110.16
5.2.100.0040.01810.16
5.2.90.0050.01610.15
5.2.80.0020.01810.15
5.2.70.0050.01610.15
5.2.60.0050.01710.13
5.2.50.0070.01510.12
5.2.40.0040.01710.10
5.2.30.0040.01610.09
5.2.20.0070.01610.08
5.2.10.0080.01310.05
5.2.00.0040.0179.98
5.1.60.0040.0139.63
5.1.50.0030.0149.62
5.1.40.0040.0169.61
5.1.30.0030.0169.79
5.1.20.0030.0169.80
5.1.10.0050.0189.66
5.1.00.0060.0149.66
5.0.50.0040.0148.90
5.0.40.0060.0128.83
5.0.30.0020.0178.74
5.0.20.0040.0118.72
5.0.10.0060.0158.71
5.0.00.0020.0218.71
4.4.90.0040.0097.98
4.4.80.0020.0097.96
4.4.70.0010.0117.97
4.4.60.0020.0107.96
4.4.50.0020.0107.97
4.4.40.0040.0147.94
4.4.30.0040.0107.96
4.4.20.0030.0128.01
4.4.10.0020.0118.01
4.4.00.0020.0147.96
4.3.110.0030.0097.92
4.3.100.0020.0127.92
4.3.90.0040.0097.91
4.3.80.0030.0127.88
4.3.70.0030.0087.90
4.3.60.0020.0097.90
4.3.50.0010.0117.90
4.3.40.0030.0147.86
4.3.30.0020.0107.23
4.3.20.0010.0137.22
4.3.10.0030.0077.20
4.3.00.0000.01113.09

preferences:
48.06 ms | 401 KiB | 5 Q