3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = '/((?<!\w)#\w+)/i'; $subject = <<<EOT Blablalb #toto zdjsdf #ho_yeah EOT; $result = []; preg_replace_callback('/((?<!\w)#\w+)/i', function ($matches) use(&$result) { var_dump($matches); }, $subject); var_dump($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)
8.3.70.0120.00418.43
8.3.60.0110.00318.68
8.3.50.0080.01022.01
8.3.40.0150.00018.84
8.3.30.0110.00419.01
8.3.20.0000.00920.06
8.3.10.0040.00423.65
8.3.00.0080.00020.80
8.2.180.0080.00816.63
8.2.170.0060.00922.96
8.2.160.0080.00520.48
8.2.150.0080.00024.18
8.2.140.0000.00924.66
8.2.130.0040.00426.16
8.2.120.0040.00420.98
8.2.110.0100.00722.21
8.2.100.0070.00417.84
8.2.90.0040.00419.21
8.2.80.0000.00817.97
8.2.70.0030.00617.75
8.2.60.0080.00317.80
8.2.50.0080.00018.07
8.2.40.0040.00421.17
8.2.30.0040.00418.27
8.2.20.0040.00417.71
8.2.10.0000.00818.16
8.2.00.0030.00517.99
8.1.280.0110.00425.92
8.1.270.0030.00623.79
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0040.00723.91
8.1.230.0040.00819.15
8.1.220.0050.00317.74
8.1.210.0070.00318.77
8.1.200.0060.00617.47
8.1.190.0030.00517.47
8.1.180.0000.00818.10
8.1.170.0060.00318.77
8.1.160.0040.00422.03
8.1.150.0000.00818.79
8.1.140.0040.00417.52
8.1.130.0030.00517.89
8.1.120.0000.00717.68
8.1.110.0080.00017.59
8.1.100.0080.00017.63
8.1.90.0000.00717.62
8.1.80.0040.00417.58
8.1.70.0050.00317.50
8.1.60.0060.00317.56
8.1.50.0030.00517.56
8.1.40.0040.00417.71
8.1.30.0000.00917.84
8.1.20.0060.00317.71
8.1.10.0050.00317.69
8.1.00.0000.00817.61
8.0.300.0040.00418.77
8.0.290.0040.00417.05
8.0.280.0040.00418.41
8.0.270.0030.00317.32
8.0.260.0030.00317.19
8.0.250.0000.00717.21
8.0.240.0040.00417.07
8.0.230.0030.00317.05
8.0.220.0030.00317.12
8.0.210.0030.00316.93
8.0.200.0030.00317.18
8.0.190.0000.00717.11
8.0.180.0000.00817.01
8.0.170.0080.00017.01
8.0.160.0020.00516.97
8.0.150.0000.00817.04
8.0.140.0040.00417.12
8.0.130.0000.00613.55
8.0.120.0020.00517.07
8.0.110.0000.00717.02
8.0.100.0050.00216.89
8.0.90.0000.00716.88
8.0.80.0080.00817.08
8.0.70.0040.00416.99
8.0.60.0080.00017.15
8.0.50.0000.00716.96
8.0.30.0080.01417.27
8.0.20.0110.00917.50
8.0.10.0000.00817.16
8.0.00.0070.01116.88
7.4.330.0000.00515.16
7.4.320.0030.00316.73
7.4.300.0000.00616.63
7.4.290.0040.00416.73
7.4.280.0070.00016.69
7.4.270.0030.00316.82
7.4.260.0000.00716.78
7.4.250.0080.00016.72
7.4.240.0000.00716.83
7.4.230.0070.00016.63
7.4.220.0130.00616.71
7.4.210.0070.01016.81
7.4.200.0000.00716.74
7.4.190.0000.00716.86
7.4.160.0080.00816.87
7.4.150.0100.01017.40
7.4.140.0090.01017.86
7.4.130.0100.00716.74
7.4.120.0060.01116.71
7.4.110.0170.00016.92
7.4.100.0060.01316.52
7.4.90.0090.00916.85
7.4.80.0170.00619.39
7.4.70.0060.01016.59
7.4.60.0120.00916.64
7.4.50.0080.00016.77
7.4.40.0040.01216.94
7.4.30.0100.00716.84
7.4.00.0060.01015.08
7.3.330.0000.00613.53
7.3.320.0000.00613.37
7.3.310.0030.00316.54
7.3.300.0030.00316.37
7.3.290.0070.00716.53
7.3.280.0050.01116.51
7.3.270.0140.00317.40
7.3.260.0120.00616.64
7.3.250.0130.00816.57
7.3.240.0120.00616.53
7.3.230.0100.00716.52
7.3.210.0120.00616.50
7.3.200.0130.00619.39
7.3.190.0100.01116.46
7.3.180.0080.00816.51
7.3.170.0110.00616.49
7.3.160.0060.00916.60
7.3.120.0070.01114.89
7.3.110.0090.00614.81
7.3.100.0120.00614.91
7.3.90.0070.00715.23
7.3.80.0080.00814.84
7.3.70.0060.01014.49
7.3.60.0000.01514.98
7.3.50.0060.00914.90
7.3.40.0130.00614.97
7.3.30.0030.01314.93
7.3.20.0080.00816.54
7.3.10.0040.01116.69
7.3.00.0100.00916.69
7.2.330.0090.00916.72
7.2.320.0130.01016.79
7.2.310.0040.01516.69
7.2.300.0150.00316.64
7.2.290.0070.01116.75
7.2.240.0080.00814.71
7.2.230.0140.00315.13
7.2.220.0150.00415.09
7.2.210.0090.01414.90
7.2.200.0080.01114.74
7.2.190.0070.00714.55
7.2.180.0040.01515.17
7.2.170.0030.00915.13
7.2.160.0070.01014.86
7.2.150.0090.00916.70
7.2.140.0140.00317.14
7.2.130.0060.01016.78
7.2.120.0060.01116.81
7.2.110.0030.01616.74
7.2.100.0050.01416.91
7.2.90.0060.01316.88
7.2.80.0100.01016.93
7.2.70.0070.00616.90
7.2.60.0090.00616.89
7.2.50.0080.01416.94
7.2.40.0070.01216.63
7.2.30.0110.00717.02
7.2.20.0090.01116.97
7.2.10.0130.00617.01
7.2.00.0070.01217.89
7.1.330.0080.00815.79
7.1.320.0070.01416.11
7.1.310.0090.00915.89
7.1.300.0070.00715.61
7.1.290.0160.00615.66
7.1.280.0060.01015.53
7.1.270.0110.00615.44
7.1.260.0070.01115.85
7.1.250.0080.00915.92
7.1.200.0000.00715.98
7.1.100.0180.00918.34
7.1.70.0000.01317.39
7.1.60.0180.00719.46
7.1.50.0030.01017.00
7.1.00.0070.07022.42
7.0.200.0050.00316.75
7.0.140.0070.06721.97
7.0.60.0070.05019.79
7.0.50.0100.07017.89
7.0.40.0100.06320.11
7.0.30.0200.04320.17
7.0.20.0270.04320.31
7.0.10.0100.08720.12
7.0.00.0130.06720.20
5.6.280.0030.07321.13
5.6.210.0100.08320.75
5.6.200.0070.03718.14
5.6.190.0030.05320.61
5.6.180.0170.06320.64
5.6.170.0200.04020.44
5.6.160.0030.07320.49
5.6.150.0100.07718.14
5.6.140.0200.07018.27
5.6.130.0030.07318.29
5.6.120.0030.05021.04
5.6.110.0100.07321.11
5.6.100.0170.07321.11
5.6.90.0130.08021.11
5.6.80.0230.04320.51
5.5.350.0030.08320.41
5.5.340.0000.09017.98
5.5.330.0030.09320.34
5.5.320.0230.04720.31
5.5.310.0300.06320.36
5.5.300.0100.07718.01
5.5.290.0030.07718.07
5.5.280.0130.07320.88
5.5.270.0100.03320.79
5.5.260.0070.04720.79
5.5.250.0130.07720.63
5.5.240.0070.07720.23
5.4.450.0430.05719.32
5.4.440.0330.03719.27
5.4.430.0270.04019.58
5.4.420.0300.06319.16
5.4.410.0470.03319.26
5.4.400.0300.04319.18
5.4.390.0300.04719.13
5.4.380.0430.04718.50
5.4.370.0300.07318.52
5.4.360.0270.05318.69
5.4.350.0330.05318.63
5.4.340.0200.05718.59
5.4.320.0070.03512.50
5.4.310.0050.04512.50
5.4.300.0080.06012.50
5.4.290.0070.04512.50
5.4.280.0070.04212.39
5.4.270.0100.03712.39
5.4.260.0060.04312.39
5.4.250.0100.05412.39
5.4.240.0120.03712.39
5.4.230.0100.04212.38
5.4.220.0080.04312.39
5.4.210.0070.03812.39
5.4.200.0060.04012.39
5.4.190.0050.04012.38
5.4.180.0070.03812.38
5.4.170.0050.03912.39
5.4.160.0080.03612.39
5.4.150.0120.04212.39
5.4.140.0040.04412.07
5.4.130.0090.03512.06
5.4.120.0050.04012.01
5.4.110.0140.05212.01
5.4.100.0070.05512.02
5.4.90.0080.04512.02
5.4.80.0060.03812.02
5.4.70.0050.04012.01
5.4.60.0090.04112.01
5.4.50.0070.05212.00
5.4.40.0070.05212.00
5.4.30.0070.05212.00
5.4.20.0070.05412.00
5.4.10.0090.04911.99
5.4.00.0090.05311.48
5.3.290.0090.04512.80
5.3.280.0090.05312.71
5.3.270.0070.05712.72
5.3.260.0100.05312.72
5.3.250.0120.05212.71
5.3.240.0110.05312.72
5.3.230.0100.05212.71
5.3.220.0080.05612.68
5.3.210.0080.05412.68
5.3.200.0060.05612.68
5.3.190.0060.05412.68
5.3.180.0130.05012.67
5.3.170.0100.05112.67
5.3.160.0080.05412.67
5.3.150.0120.05012.67
5.3.140.0060.05512.66
5.3.130.0120.05012.66
5.3.120.0120.05112.66
5.3.110.0100.05312.65
5.3.100.0080.05012.12
5.3.90.0110.04912.08
5.3.80.0080.05012.08
5.3.70.0060.05112.07
5.3.60.0130.04512.06
5.3.50.0070.04612.00
5.3.40.0160.03812.00
5.3.30.0070.04711.95
5.3.20.0110.06011.73
5.3.10.0270.08911.70
5.3.00.0070.05011.68
5.2.170.0100.0339.18
5.2.160.0080.0339.18
5.2.150.0110.0429.18
5.2.140.0050.0559.18
5.2.130.0070.0349.14
5.2.120.0150.0319.14
5.2.110.0100.0299.14
5.2.100.0050.0389.14
5.2.90.0050.0329.14
5.2.80.0060.0389.14
5.2.70.0050.0419.14
5.2.60.0050.0369.09
5.2.50.0080.0329.06
5.2.40.0060.0309.04
5.2.30.0050.0379.01
5.2.20.0040.0319.00
5.2.10.0080.0268.93
5.2.00.0090.0278.78
5.1.60.0040.0288.07
5.1.50.0070.0338.06
5.1.40.0050.0298.05
5.1.30.0070.0288.40
5.1.20.0070.0388.42
5.1.10.0060.0388.14
5.1.00.0030.0348.14
5.0.50.0050.0286.62
5.0.40.0080.0426.48
5.0.30.0040.0416.29
5.0.20.0090.0246.26
5.0.10.0060.0416.24
5.0.00.0080.0396.23
4.4.90.0040.0234.78
4.4.80.0080.0174.75
4.4.70.0070.0184.75
4.4.60.0050.0184.76
4.4.50.0060.0304.77
4.4.40.0060.0344.71
4.4.30.0060.0184.76
4.4.20.0030.0234.84
4.4.10.0050.0154.85
4.4.00.0060.0244.76
4.3.110.0040.0174.67
4.3.100.0040.0174.67
4.3.90.0020.0184.64
4.3.80.0030.0264.58
4.3.70.0040.0164.63
4.3.60.0010.0184.63
4.3.50.0030.0164.62
4.3.40.0060.0324.54
4.3.30.0020.0193.28
4.3.20.0030.0253.26
4.3.10.0060.0223.22
4.3.00.0030.01716.13

preferences:
36.36 ms | 401 KiB | 5 Q