3v4l.org

run code in 300+ PHP versions simultaneously
<?php $text = 'say hello to @elise and @john'; function replace_at_symbol($matches){ $username = str_replace("@", "", $matches[0]); return '<a href="/profile/'.$username.'">'.$matches[0].'</a>';} $output = preg_replace_callback("/([@][a-zA-Z-0-9]+)/", "replace_at_symbol", $text); echo $output; ?>

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)
8.3.60.0040.01118.55
8.3.50.0130.00622.05
8.3.40.0110.00418.64
8.3.30.0070.00718.91
8.3.20.0040.00420.33
8.3.10.0070.00021.91
8.3.00.0040.00417.80
8.2.180.0140.00416.63
8.2.170.0090.00622.96
8.2.160.0120.00320.36
8.2.150.0070.00024.18
8.2.140.0030.00524.66
8.2.130.0000.00826.16
8.2.120.0050.00321.14
8.2.110.0060.00321.09
8.2.100.0120.00017.97
8.2.90.0050.00319.21
8.2.80.0040.00418.00
8.2.70.0060.00317.88
8.2.60.0000.00918.05
8.2.50.0080.00018.07
8.2.40.0040.00418.26
8.2.30.0000.00818.15
8.2.20.0000.00817.81
8.2.10.0040.00418.13
8.2.00.0040.00417.96
8.1.280.0090.00625.92
8.1.270.0050.00323.91
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0100.00022.46
8.1.230.0060.00621.10
8.1.220.0000.00818.77
8.1.210.0000.00819.03
8.1.200.0000.01017.60
8.1.190.0050.00317.47
8.1.180.0050.00318.10
8.1.170.0000.00818.77
8.1.160.0040.00421.92
8.1.150.0050.00218.91
8.1.140.0040.00417.46
8.1.130.0000.00717.77
8.1.120.0040.00417.66
8.1.110.0040.00417.46
8.1.100.0040.00417.53
8.1.90.0000.00717.58
8.1.80.0000.00717.50
8.1.70.0050.00317.52
8.1.60.0030.00517.66
8.1.50.0040.00417.71
8.1.40.0000.01217.70
8.1.30.0030.00517.81
8.1.20.0030.00617.85
8.1.10.0080.00017.63
8.1.00.0040.00417.55
8.0.300.0070.00019.89
8.0.290.0080.00016.75
8.0.280.0000.00718.52
8.0.270.0030.00317.27
8.0.260.0000.00617.29
8.0.250.0060.00017.13
8.0.240.0070.00017.03
8.0.230.0000.00716.99
8.0.220.0000.00717.09
8.0.210.0030.00316.92
8.0.200.0000.00816.97
8.0.190.0040.00416.97
8.0.180.0050.00516.99
8.0.170.0040.00417.06
8.0.160.0040.00416.99
8.0.150.0040.00417.02
8.0.140.0040.00417.04
8.0.130.0030.00313.50
8.0.120.0040.00417.04
8.0.110.0040.00416.87
8.0.100.0040.00416.93
8.0.90.0040.00417.15
8.0.80.0000.01517.01
8.0.70.0040.00417.09
8.0.60.0040.00416.91
8.0.50.0000.00817.05
8.0.30.0120.00617.13
8.0.20.0180.00717.43
8.0.10.0060.00317.00
8.0.00.0110.00717.08
7.4.330.0050.00015.08
7.4.320.0030.00516.81
7.4.300.0070.00016.68
7.4.290.0080.00016.86
7.4.280.0060.00316.70
7.4.270.0070.00016.70
7.4.260.0030.00316.70
7.4.250.0050.00316.79
7.4.240.0040.00316.78
7.4.230.0030.00316.61
7.4.220.0070.01016.85
7.4.210.0000.01516.84
7.4.200.0000.00716.78
7.4.160.0160.00616.70
7.4.150.0120.00917.40
7.4.140.0070.01317.86
7.4.130.0100.00916.73
7.4.120.0120.00516.87
7.4.110.0070.01016.72
7.4.100.0040.01816.63
7.4.90.0130.01016.56
7.4.80.0100.00719.39
7.4.70.0110.00716.80
7.4.60.0110.01116.70
7.4.50.0040.00016.80
7.4.40.0060.00916.64
7.4.30.0080.00816.69
7.4.00.0030.01014.98
7.3.330.0050.00013.33
7.3.320.0000.00513.52
7.3.310.0080.00016.55
7.3.300.0070.00016.47
7.3.290.0160.00316.37
7.3.280.0110.00616.45
7.3.270.0060.01217.40
7.3.260.0140.00416.75
7.3.250.0100.00716.64
7.3.240.0070.01016.82
7.3.230.0030.01316.59
7.3.210.0050.01116.63
7.3.200.0060.01319.39
7.3.190.0030.01816.60
7.3.180.0100.00716.71
7.3.170.0080.00816.61
7.3.160.0080.00816.37
7.3.120.0030.01315.27
7.2.330.0180.00016.87
7.2.320.0070.01416.77
7.2.310.0130.00316.97
7.2.300.0120.00616.80
7.2.290.0060.01016.88
7.2.60.0080.00816.87
7.2.00.0120.00819.13
7.1.200.0030.00916.05
7.1.100.0040.00818.35
7.1.70.0000.00717.42
7.1.60.0130.01019.25
7.1.50.0030.01617.18
7.1.00.0100.07022.44
7.0.200.0080.00016.97
7.0.140.0070.07022.02
7.0.60.0070.07319.86
7.0.50.0030.04017.97
7.0.40.0130.04320.15
7.0.30.0200.04720.17
7.0.20.0330.07020.18
7.0.10.0070.05020.35
7.0.00.0030.04020.10
5.6.280.0000.07721.05
5.6.210.0070.07720.47
5.6.200.0000.07718.29
5.6.190.0070.09320.67
5.6.180.0230.04020.61
5.6.170.0230.03720.71
5.6.160.0070.08720.45
5.6.150.0100.08018.16
5.6.140.0070.07318.21
5.6.130.0030.04018.14
5.6.120.0070.09021.04
5.6.110.0100.03721.06
5.6.100.0030.07720.99
5.6.90.0070.08321.14
5.6.80.0170.04320.45
5.5.350.0170.03720.44
5.5.340.0070.03317.96
5.5.330.0030.07720.19
5.5.320.0270.07720.38
5.5.310.0270.03320.34
5.5.300.0000.07017.98
5.5.290.0070.04718.02
5.5.280.0000.04320.66
5.5.270.0070.08720.89
5.5.260.0070.03720.77
5.5.250.0170.06320.45
5.5.240.0100.07020.37
5.4.450.0730.05019.69
5.4.440.0200.05319.34
5.4.430.0270.04319.50
5.4.420.0170.05319.35
5.4.410.0130.05319.26
5.4.400.0170.05018.98
5.4.390.0170.05319.29
5.4.380.0130.05718.63
5.4.370.0200.05018.43
5.4.360.0200.05318.63
5.4.350.0080.05412.02
5.4.340.0080.04212.02
5.4.320.0060.03712.50
5.4.310.0060.03712.50
5.4.300.0070.03812.50
5.4.290.0080.04012.50
5.4.280.0080.04112.40
5.4.270.0050.04212.40
5.4.260.0090.04412.40
5.4.250.0040.04412.40
5.4.240.0030.04212.40
5.4.230.0060.03812.39
5.4.220.0030.03812.39
5.4.210.0090.03812.39
5.4.200.0060.04112.39
5.4.190.0070.03512.39
5.4.180.0120.03612.38
5.4.170.0060.03912.39
5.4.160.0110.03612.39
5.4.150.0070.04512.39
5.4.140.0060.04312.07
5.4.130.0040.04012.06
5.4.120.0070.03812.02
5.4.110.0020.04912.01
5.4.100.0050.04312.01
5.4.90.0050.03712.01
5.4.80.0040.03812.01
5.4.70.0030.03612.01
5.4.60.0020.03712.00
5.4.50.0030.03712.01
5.4.40.0040.03512.00
5.4.30.0040.03612.00
5.4.20.0090.03212.00
5.4.10.0030.03611.99
5.4.00.0080.03411.48
5.3.290.0080.03712.80
5.3.280.0070.03612.71
5.3.270.0060.03812.72
5.3.260.0060.03812.72
5.3.250.0070.03612.72
5.3.240.0070.03612.72
5.3.230.0080.03512.70
5.3.220.0040.03812.68
5.3.210.0050.03912.68
5.3.200.0030.03812.68
5.3.190.0050.03712.68
5.3.180.0030.04012.67
5.3.170.0090.03412.67
5.3.160.0080.03612.67
5.3.150.0070.03712.68
5.3.140.0060.03712.66
5.3.130.0060.03912.66
5.3.120.0030.04112.65
5.3.110.0060.03812.65
5.3.100.0040.04012.13
5.3.90.0060.03612.11
5.3.80.0070.03512.11
5.3.70.0100.03212.10
5.3.60.0090.03312.09
5.3.50.0050.03712.03
5.3.40.0050.03712.04
5.3.30.0070.03311.99
5.3.20.0060.03511.78
5.3.10.0050.03511.74
5.3.00.0070.03511.73
5.2.170.0070.0289.23
5.2.160.0050.0289.23
5.2.150.0080.0279.23
5.2.140.0030.0319.22
5.2.130.0040.0299.18
5.2.120.0040.0299.18
5.2.110.0040.0299.20
5.2.100.0100.0229.19
5.2.90.0060.0279.19
5.2.80.0060.0299.19
5.2.70.0060.0299.19
5.2.60.0050.0309.14
5.2.50.0050.0299.11
5.2.40.0060.0269.09
5.2.30.0050.0299.06
5.2.20.0030.0309.06
5.2.10.0030.0308.94
5.2.00.0050.0288.80
5.1.60.0060.0218.09
5.1.50.0040.0248.08
5.1.40.0050.0238.07
5.1.30.0030.0278.41
5.1.20.0050.0258.43
5.1.10.0030.0268.16
5.1.00.0030.0268.16
5.0.50.0030.0216.64
5.0.40.0020.0216.50
5.0.30.0030.0326.31
5.0.20.0040.0186.27
5.0.10.0050.0186.25
5.0.00.0030.0306.25
4.4.90.0020.0174.78
4.4.80.0020.0164.75
4.4.70.0040.0144.76
4.4.60.0010.0174.76
4.4.50.0030.0154.77
4.4.40.0060.0214.71
4.4.30.0020.0164.76
4.4.20.0010.0174.85
4.4.10.0040.0154.85
4.4.00.0030.0244.76
4.3.110.0020.0164.67
4.3.100.0040.0134.67
4.3.90.0030.0144.64
4.3.80.0030.0244.59
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0040.0144.63
4.3.40.0040.0234.54
4.3.30.0030.0153.30
4.3.20.0030.0153.28
4.3.10.0020.0153.24
4.3.00.0130.0207.13

preferences:
42.71 ms | 401 KiB | 5 Q