3v4l.org

run code in 300+ PHP versions simultaneously
<?php $regex1 = "/[^0-9a-z\s]+/i"; // Search for everything that is not alphanumeric or whitespace $regex2 = "/\s+/"; // Search for whitespace $regex3 = "/-+$/"; // search for trailing dashes $text = "Hello World - This/That is (Test)"; // replace in turn, non-alpha with space, one or more spaces with dash, one or more trailing dashes with nothing $text2 = preg_replace([$regex1, $regex2, $regex3],[' ','-',''], $text); $text2 = strtolower($text2); echo $text2;

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)
8.4.120.0050.00523.88
8.4.110.0070.00922.27
8.4.100.0120.00918.58
8.4.90.0090.00918.58
8.4.80.0100.00518.87
8.4.70.0110.00819.69
8.4.60.0120.00818.66
8.4.50.0150.00517.95
8.4.40.0030.00619.75
8.4.30.0100.01020.45
8.4.20.0070.01318.81
8.4.10.0040.00418.07
8.3.250.0070.00818.85
8.3.240.0070.00216.97
8.3.230.0070.00516.63
8.3.220.0060.00118.95
8.3.210.0070.01018.67
8.3.200.0110.01016.79
8.3.190.0080.00217.29
8.3.180.0120.00716.56
8.3.170.0100.01018.92
8.3.160.0090.00917.15
8.3.150.0150.00317.20
8.3.140.0090.00617.25
8.3.130.0090.00018.51
8.3.120.0040.00418.74
8.3.110.0090.00920.94
8.3.100.0080.00016.58
8.3.90.0060.00318.56
8.3.80.0000.00916.75
8.3.70.0130.00316.58
8.3.60.0090.00918.27
8.3.50.0160.00416.61
8.3.40.0090.00619.10
8.3.30.0110.00718.98
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0080.00026.16
8.2.290.0050.00622.65
8.2.280.0110.00418.77
8.2.270.0130.00716.95
8.2.260.0090.00916.46
8.2.250.0000.00816.75
8.2.240.0060.00317.41
8.2.230.0100.00022.58
8.2.220.0030.00624.06
8.2.210.0140.00426.77
8.2.200.0030.00616.75
8.2.190.0070.01016.85
8.2.180.0200.00325.92
8.2.170.0060.00919.16
8.2.160.0120.00322.96
8.2.150.0040.00425.66
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00321.31
8.2.110.0070.00322.29
8.2.100.0040.00817.97
8.2.90.0040.00418.16
8.2.80.0000.00819.11
8.2.70.0040.00417.75
8.2.60.0030.00517.93
8.2.50.0000.00818.05
8.2.40.0040.00418.16
8.2.30.0080.00018.08
8.2.20.0000.00817.96
8.2.10.0050.00319.32
8.2.00.0000.00819.33
8.1.330.0120.00722.13
8.1.320.0130.00716.27
8.1.310.0040.00418.50
8.1.300.0090.00018.71
8.1.290.0030.00618.88
8.1.280.0150.00625.92
8.1.270.0080.00022.20
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00422.61
8.1.230.0080.00320.89
8.1.220.0000.00817.79
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0060.00317.35
8.1.180.0040.00418.10
8.1.170.0040.00418.83
8.1.160.0070.00018.98
8.1.150.0000.00718.91
8.1.140.0000.00718.95
8.1.130.0070.00020.16
8.1.120.0000.00717.63
8.1.110.0000.00717.62
8.1.100.0080.00017.64
8.1.90.0030.00417.57
8.1.80.0030.00717.57
8.1.70.0040.00417.49
8.1.60.0000.00817.77
8.1.50.0030.00617.63
8.1.40.0030.00617.70
8.1.30.0030.00617.78
8.1.20.0040.00417.76
8.1.10.0020.00517.55
8.1.00.0000.00817.57
8.0.300.0050.00220.07
8.0.290.0050.00316.88
8.0.280.0040.00418.50
8.0.270.0040.00418.20
8.0.260.0070.00018.42
8.0.250.0000.00717.07
8.0.240.0000.00717.12
8.0.230.0000.00717.00
8.0.220.0090.00017.11
8.0.210.0050.00317.02
8.0.200.0070.00016.97
8.0.190.0060.00317.09
8.0.180.0000.00716.95
8.0.170.0000.00817.04
8.0.160.0000.00716.94
8.0.150.0080.00016.96
8.0.140.0000.00917.08
8.0.130.0000.00613.44
8.0.120.0000.00716.89
8.0.110.0050.00216.93
8.0.100.0000.00816.83
8.0.90.0040.00417.00
8.0.80.0100.00617.05
8.0.70.0040.00417.03
8.0.60.0000.00817.13
8.0.50.0000.00817.07
8.0.30.0170.00317.01
8.0.20.0060.01017.10
8.0.10.0100.00717.10
8.0.00.0120.00917.17
7.4.330.0060.00015.55
7.4.320.0050.00216.86
7.4.300.0060.00016.70
7.4.290.0080.00016.73
7.4.280.0040.00416.80
7.4.270.0030.00516.86
7.4.260.0030.00313.54
7.4.250.0050.00316.79
7.4.240.0000.00816.79
7.4.230.0040.00416.73
7.4.220.0070.00016.67
7.4.210.0100.00316.67
7.4.200.0040.00416.82
7.4.160.0180.00016.80
7.4.150.0070.01416.75
7.4.140.0120.00316.81
7.4.130.0160.00016.70
7.4.120.0090.00916.56
7.4.110.0120.00616.71
7.4.100.0030.01316.62
7.4.90.0100.00616.79
7.4.80.0080.01116.82
7.4.70.0060.00916.75
7.4.60.0060.00916.81
7.4.50.0100.01016.65
7.4.40.0080.01216.66
7.4.30.0040.01616.74
7.4.20.0090.00616.65
7.4.10.0060.01216.65
7.4.00.0060.01216.76
7.3.330.0000.00716.36
7.3.320.0000.00613.22
7.3.310.0020.00616.34
7.3.300.0030.00316.10
7.3.290.0070.01116.34
7.3.270.0040.01516.37
7.3.260.0110.00416.45
7.3.250.0090.00616.37
7.3.240.0090.00616.40
7.3.230.0040.01416.28
7.3.220.0130.00316.32
7.3.210.0140.00316.30
7.3.200.0060.01116.30
7.3.190.0070.01416.34
7.3.180.0100.01016.23
7.3.170.0150.00016.27
7.3.160.0030.01716.22
7.3.150.0140.00616.31
7.3.140.0100.01016.33
7.3.130.0130.00316.20
7.3.120.0120.00916.33
7.3.110.0080.00816.19
7.3.100.0080.00816.21
7.3.90.0110.00416.66
7.3.80.0130.01016.30
7.3.70.0120.01116.42
7.3.60.0090.01316.49
7.3.50.0030.01616.50
7.3.40.0140.00716.41
7.3.30.0040.01116.42
7.3.20.0030.01216.46
7.3.10.0090.00916.45
7.3.00.0110.00416.43

preferences:
27.4 ms | 403 KiB | 5 Q