3v4l.org

run code in 300+ PHP versions simultaneously
<?php $re = '/\h*\R(\h+)[*]useless[*]Text\s*/'; $str = '1 *useless*Text Steve Waugh'; $subst = '$1'; $result = preg_replace($re, $subst, $str, 1); echo $result;

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)
8.4.120.0110.00920.44
8.4.110.0050.00322.32
8.4.100.0100.01118.11
8.4.90.0120.00917.87
8.4.80.0090.01217.79
8.4.70.0120.01018.18
8.4.60.0060.00518.93
8.4.50.0080.01218.07
8.4.40.0060.00319.76
8.4.30.0130.00620.39
8.4.20.0060.00318.13
8.4.10.0090.00019.38
8.3.250.0120.00719.00
8.3.240.0070.00318.57
8.3.230.0050.00516.72
8.3.220.0100.00917.25
8.3.210.0100.00616.50
8.3.200.0060.00216.64
8.3.190.0020.00618.79
8.3.180.0060.00316.78
8.3.170.0130.00317.26
8.3.160.0130.00620.65
8.3.150.0090.00916.57
8.3.140.0120.00619.04
8.3.130.0100.00718.43
8.3.120.0090.00918.84
8.3.110.0130.00720.94
8.3.100.0050.00516.67
8.3.90.0140.00420.14
8.3.80.0000.01019.36
8.3.70.0110.01116.63
8.3.60.0040.01118.31
8.3.50.0110.00624.50
8.3.40.0110.00419.05
8.3.30.0070.00718.89
8.3.20.0060.00320.73
8.3.10.0060.01221.99
8.3.00.0080.00021.73
8.2.290.0100.00820.66
8.2.280.0090.00918.25
8.2.270.0150.00416.70
8.2.260.0120.00616.59
8.2.250.0030.00616.73
8.2.240.0110.00016.92
8.2.230.0040.00422.58
8.2.220.0060.00324.06
8.2.210.0050.00326.77
8.2.200.0080.00018.88
8.2.190.0130.01016.75
8.2.180.0110.01118.23
8.2.170.0110.00722.96
8.2.160.0040.01222.30
8.2.150.0090.00024.18
8.2.140.0000.00824.66
8.2.130.0110.00426.16
8.2.120.0050.00226.16
8.2.110.0060.00322.39
8.2.100.0110.00017.78
8.2.90.0000.00817.75
8.2.80.0040.00419.05
8.2.70.0040.00417.93
8.2.60.0040.00418.22
8.2.50.0000.00819.46
8.2.40.0080.00021.21
8.2.30.0040.00419.23
8.2.20.0060.00318.11
8.2.10.0040.00419.30
8.2.00.0040.00419.37
8.1.330.0090.00821.89
8.1.320.0120.00716.45
8.1.310.0060.00318.04
8.1.300.0070.01120.20
8.1.290.0090.00030.84
8.1.280.0030.01025.92
8.1.270.0080.00022.48
8.1.260.0040.00426.35
8.1.250.0140.00328.09
8.1.240.0030.00723.96
8.1.230.0070.00420.89
8.1.220.0040.00417.88
8.1.210.0050.00318.77
8.1.200.0000.00917.35
8.1.190.0000.00817.23
8.1.180.0040.00418.97
8.1.170.0060.00318.78
8.1.160.0030.00618.91
8.1.150.0080.00019.07
8.1.140.0040.00417.44
8.1.130.0050.00220.09
8.1.120.0070.00017.57
8.1.110.0030.00517.53
8.1.100.0030.00517.56
8.1.90.0000.00717.51
8.1.80.0000.00717.50
8.1.70.0040.00417.50
8.1.60.0080.00017.72
8.1.50.0030.00617.58
8.1.40.0000.00817.55
8.1.30.0000.00917.71
8.1.20.0000.00917.77
8.1.10.0030.00617.62
8.1.00.0080.00017.61
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0050.00218.47
8.0.270.0000.00716.86
8.0.260.0030.00320.13
8.0.250.0030.00317.02
8.0.240.0000.00717.08
8.0.230.0000.00616.91
8.0.220.0030.00316.90
8.0.210.0030.00316.95
8.0.200.0030.00516.87
8.0.190.0020.00516.99
8.0.180.0080.00016.91
8.0.170.0030.00617.03
8.0.160.0030.00516.93
8.0.150.0070.00016.80
8.0.140.0040.00416.92
8.0.130.0000.00613.33
8.0.120.0030.00516.96
8.0.110.0040.00417.01
8.0.100.0000.00716.90
8.0.90.0090.00016.95
8.0.80.0080.01016.98
8.0.70.0030.00316.82
8.0.60.0030.00616.93
8.0.50.0000.00816.82
8.0.30.0130.00317.02
8.0.20.0100.00917.23
8.0.10.0000.00717.08
8.0.00.0100.01016.83
7.4.330.0050.00016.79
7.4.320.0000.00616.80
7.4.300.0030.00316.75
7.4.290.0030.00316.73
7.4.280.0000.00816.56
7.4.270.0070.00016.64
7.4.260.0050.00013.43
7.4.250.0070.00016.66
7.4.240.0040.00316.64
7.4.230.0000.00816.63
7.4.220.0050.00216.84
7.4.210.0050.01216.75
7.4.200.0000.00716.46
7.4.130.0110.00716.68
7.4.120.0070.01016.54
7.4.110.0090.00916.69
7.4.100.0070.01016.30
7.4.90.0100.00716.45
7.4.80.0080.00819.39
7.4.70.0090.01316.62
7.4.60.0140.00316.70
7.4.50.0070.01016.51
7.4.40.0090.00816.61
7.4.10.0030.01015.07
7.4.00.0060.00614.65
7.3.330.0000.00816.36
7.3.320.0030.00313.22
7.3.310.0040.00416.22
7.3.300.0000.00716.38
7.3.290.0100.00716.36
7.3.280.0090.00916.30
7.3.260.0130.01016.32
7.3.230.0070.01216.24
7.3.210.0060.01216.64
7.3.200.0090.00916.88
7.3.190.0100.01016.32
7.3.180.0030.01616.34
7.3.170.0070.01016.46
7.3.160.0120.00416.41
7.3.130.0100.00314.82
7.3.120.0090.00414.87
7.3.110.0110.00814.75
7.3.100.0080.00615.00
7.3.90.0030.01014.88
7.3.80.0150.00514.88
7.3.70.0120.00315.09
7.3.60.0120.00514.87
7.3.50.0100.01014.73
7.3.40.0090.00615.00
7.3.30.0060.00915.04
7.3.20.0130.00614.94
7.3.10.0100.01114.86
7.3.00.0080.01515.10
7.2.330.0100.00716.58
7.2.320.0040.01216.76
7.2.310.0080.00816.54
7.2.300.0090.00916.73
7.2.290.0060.01316.71
7.2.260.0030.01015.16
7.2.250.0100.00615.26
7.2.240.0070.01015.14
7.2.230.0060.00915.34
7.2.220.0090.00414.90
7.2.210.0110.00615.32
7.2.200.0040.01214.93
7.2.190.0140.00015.17
7.2.180.0130.00314.85
7.2.170.0030.01115.03
7.2.160.0070.00715.05
7.2.150.0090.00615.34
7.2.140.0070.01115.11
7.2.130.0120.00914.96
7.2.120.0110.01115.16
7.2.110.0110.00614.99
7.2.100.0030.01314.91
7.2.90.0100.00514.95
7.2.80.0060.01015.11
7.2.70.0060.01015.06
7.2.60.0030.01415.06
7.2.50.0080.00815.23
7.2.40.0090.00615.07
7.2.30.0090.00615.42
7.2.20.0110.00415.29
7.2.10.0090.00515.28
7.2.00.0100.00315.07

preferences:
28.49 ms | 403 KiB | 5 Q