3v4l.org

run code in 300+ PHP versions simultaneously
<?php function replace_callback($matches){ return $matches; } $str = "abc{123}def{456}ghi{789}jkl"; $result = preg_replace_callback('/\[(.*){.*}]/', 'replace_callback', $str); print_r($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)
8.3.60.0180.00316.84
8.3.50.0250.00522.03
8.3.40.0090.00618.77
8.3.30.0070.00718.96
8.3.20.0040.00420.16
8.3.10.0040.00423.61
8.3.00.0060.00317.63
8.2.180.0080.00817.00
8.2.170.0110.00322.96
8.2.160.0130.00320.42
8.2.150.0090.00024.18
8.2.140.0000.00724.66
8.2.130.0000.00826.16
8.2.120.0000.00822.07
8.2.110.0100.00019.40
8.2.100.0040.00717.84
8.2.90.0000.00819.13
8.2.80.0030.00617.97
8.2.70.0080.00017.63
8.2.60.0080.00317.88
8.2.50.0090.00018.07
8.2.40.0080.00019.89
8.2.30.0030.00518.08
8.2.20.0050.00517.64
8.2.10.0040.00418.02
8.2.00.0080.00017.86
8.1.280.0100.01025.92
8.1.270.0040.00423.92
8.1.260.0060.00326.35
8.1.250.0070.00028.09
8.1.240.0030.00723.79
8.1.230.0110.00019.23
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0000.00917.35
8.1.190.0070.00017.53
8.1.180.0090.00018.10
8.1.170.0080.00018.72
8.1.160.0040.00422.02
8.1.150.0000.00718.71
8.1.140.0050.00517.57
8.1.130.0000.00717.88
8.1.120.0000.00717.38
8.1.110.0070.00017.56
8.1.100.0040.00417.56
8.1.90.0030.00317.56
8.1.80.0000.00717.55
8.1.70.0020.00517.39
8.1.60.0000.00817.68
8.1.50.0030.00517.50
8.1.40.0040.00417.56
8.1.30.0050.00317.54
8.1.20.0040.00417.63
8.1.10.0050.00317.50
8.1.00.0040.00417.54
8.0.300.0050.00320.73
8.0.290.0040.00417.05
8.0.280.0000.00718.26
8.0.270.0070.00017.17
8.0.260.0060.00017.13
8.0.250.0000.00816.90
8.0.240.0000.00617.07
8.0.230.0000.00717.02
8.0.220.0000.00716.93
8.0.210.0070.00016.93
8.0.200.0000.00717.02
8.0.190.0000.00716.99
8.0.180.0070.00416.85
8.0.170.0050.00316.88
8.0.160.0060.00316.98
8.0.150.0050.00216.82
8.0.140.0000.00716.95
8.0.130.0000.00913.35
8.0.120.0060.00316.95
8.0.110.0040.00416.88
8.0.100.0050.00216.86
8.0.90.0000.00716.85
8.0.80.0110.00517.00
8.0.70.0040.00416.99
8.0.60.0000.00817.04
8.0.50.0040.00416.84
8.0.30.0110.00817.27
8.0.20.0090.00917.40
8.0.10.0080.00016.96
8.0.00.0090.00816.92
7.4.330.0030.00315.00
7.4.320.0060.00016.65
7.4.300.0000.00716.74
7.4.290.0070.00016.74
7.4.280.0040.00416.64
7.4.270.0020.00516.66
7.4.260.0030.00316.74
7.4.250.0000.00816.77
7.4.240.0070.00016.69
7.4.230.0030.00316.48
7.4.220.0070.01116.82
7.4.210.0040.01316.68
7.4.200.0070.00016.62
7.4.190.0070.00016.76
7.4.160.0070.00716.48
7.4.150.0060.01117.40
7.4.140.0120.01017.86
7.4.130.0110.00516.57
7.4.120.0120.00516.63
7.4.110.0160.00616.42
7.4.100.0100.01416.75
7.4.90.0120.00616.48
7.4.80.0170.00719.39
7.4.70.0110.00716.52
7.4.60.0030.01516.57
7.4.50.0020.00216.66
7.4.40.0060.01222.77
7.4.30.0100.00616.55
7.4.00.0050.01214.96
7.3.330.0000.00513.18
7.3.320.0000.00513.39
7.3.310.0080.00016.23
7.3.300.0030.00316.29
7.3.290.0070.00716.33
7.3.280.0080.01216.34
7.3.270.0140.00317.40
7.3.260.0120.01316.28
7.3.250.0120.00916.37
7.3.240.0120.00716.36
7.3.230.0110.00716.41
7.3.210.0090.01216.73
7.3.200.0140.00919.39
7.3.190.0110.01116.61
7.3.180.0040.01116.38
7.3.170.0060.00916.33
7.3.160.0100.00616.63
7.3.120.0060.00714.91
7.3.110.0070.00315.11
7.3.100.0090.00615.00
7.3.90.0070.00314.71
7.3.80.0050.00514.80
7.3.70.0060.00314.72
7.3.60.0000.01414.95
7.3.50.0000.00814.92
7.3.40.0060.00314.86
7.3.30.0030.01314.83
7.3.20.0110.00416.50
7.3.10.0070.00716.61
7.3.00.0000.01016.61
7.2.330.0110.00616.70
7.2.320.0130.01016.57
7.2.310.0100.00716.72
7.2.300.0120.00416.61
7.2.290.0150.00316.51
7.2.250.0030.01715.14
7.2.240.0070.01115.11
7.2.230.0130.00315.03
7.2.220.0110.00714.85
7.2.210.0030.01015.18
7.2.200.0110.00415.23
7.2.190.0030.01314.78
7.2.180.0110.00314.98
7.2.170.0040.00415.13
7.2.00.0030.01019.19
7.1.330.0070.00715.89
7.1.320.0040.00715.86
7.1.310.0040.01116.09
7.1.300.0090.00615.63
7.1.290.0070.00715.98
7.1.280.0030.01015.62
7.1.270.0030.01015.60
7.1.260.0030.01015.96
7.1.100.0090.00318.34
7.1.70.0040.00417.14
7.1.60.0140.00719.46
7.1.50.0090.01516.72
7.1.00.0030.07722.34
7.0.200.0040.00416.79
7.0.140.0030.07321.99
7.0.60.0400.06720.07
7.0.50.0100.06717.93
7.0.40.0030.09020.22
7.0.30.0330.04320.25
7.0.20.0330.04720.17
7.0.10.0070.08320.07
7.0.00.0070.07020.31
5.6.280.0070.07020.86
5.6.210.0170.06720.48
5.6.200.0000.08018.25
5.6.190.0030.05020.64
5.6.180.0300.07020.48
5.6.170.0300.07720.62
5.6.160.0100.06318.18
5.6.150.0100.07718.19
5.6.140.0100.06018.11
5.6.130.0000.08018.12
5.6.120.0100.08021.02
5.6.110.0130.07321.04
5.6.100.0030.04320.99
5.6.90.0100.08021.11
5.6.80.0100.04020.54
5.5.350.0330.06320.46
5.5.340.0030.04017.96
5.5.330.0030.07320.13
5.5.320.0400.06720.22
5.5.310.0230.05020.24
5.5.300.0100.06318.01
5.5.290.0000.04318.08
5.5.280.0130.07720.77
5.5.270.0130.08020.79
5.5.260.0030.04020.89
5.5.250.0170.04720.55
5.5.240.0200.07320.14
5.4.450.1000.05319.48
5.4.440.0830.06719.63
5.4.430.0970.05719.59
5.4.420.0670.05719.57
5.4.410.0170.06019.35
5.4.400.0730.05319.14
5.4.390.0770.05018.84
5.4.380.0230.06318.56
5.4.370.0330.05718.76
5.4.360.0430.04018.79
5.4.350.0300.05718.63
5.4.340.0300.05318.79
5.4.320.0040.04212.50
5.4.310.0090.04912.50
5.4.300.0040.03812.50
5.4.290.0090.04012.50
5.4.280.0090.03612.39
5.4.270.0100.03512.39
5.4.260.0090.03612.39
5.4.250.0080.04312.39
5.4.240.0060.03912.39
5.4.230.0050.04212.38
5.4.220.0140.03312.38
5.4.210.0090.04312.38
5.4.200.0060.03912.38
5.4.190.0110.03312.38
5.4.180.0070.03912.38
5.4.170.0090.03712.39
5.4.160.0100.03412.38
5.4.150.0090.04012.38
5.4.140.0100.04212.06
5.4.130.0070.03712.05
5.4.120.0050.03812.01
5.4.110.0100.05412.00
5.4.100.0080.03312.00
5.4.90.0080.03712.00
5.4.80.0090.03412.01
5.4.70.0040.03912.00
5.4.60.0060.03512.00
5.4.50.0100.04012.00
5.4.40.0120.04511.99
5.4.30.0060.03611.99
5.4.20.0080.03611.99
5.4.10.0140.03811.98
5.4.00.0050.04911.48
5.3.290.0070.03812.80
5.3.280.0060.03912.71
5.3.270.0090.04512.72
5.3.260.0130.05312.72
5.3.250.0090.03912.72
5.3.240.0090.03612.72
5.3.230.0070.05512.71
5.3.220.0080.05712.68
5.3.210.0080.05812.68
5.3.200.0090.05312.68
5.3.190.0120.04912.68
5.3.180.0150.05812.67
5.3.170.0090.05312.67
5.3.160.0110.05612.67
5.3.150.0120.04312.67
5.3.140.0060.04012.66
5.3.130.0030.04212.66
5.3.120.0080.03912.66
5.3.110.0090.05012.66
5.3.100.0090.04112.13
5.3.90.0140.04612.11
5.3.80.0060.04112.10
5.3.70.0050.04112.10
5.3.60.0050.03912.09
5.3.50.0100.03512.03
5.3.40.0070.03812.03
5.3.30.0110.04611.98
5.3.20.0080.03811.77
5.3.10.0050.03611.74
5.3.00.0100.03511.73
5.2.170.0110.0299.22
5.2.160.0050.0309.23
5.2.150.0070.0299.23
5.2.140.0070.0429.22
5.2.130.0070.0409.18
5.2.120.0090.0379.18
5.2.110.0100.0459.19
5.2.100.0050.0459.18
5.2.90.0080.0419.18
5.2.80.0080.0419.18
5.2.70.0100.0389.18
5.2.60.0080.0369.13
5.2.50.0030.0349.10
5.2.40.0060.0419.09
5.2.30.0060.0329.06
5.2.20.0080.0279.05
5.2.10.0060.0278.94
5.2.00.0060.0418.80
5.1.60.0070.0238.09
5.1.50.0060.0258.08
5.1.40.0050.0258.06
5.1.30.0060.0268.41
5.1.20.0050.0268.43
5.1.10.0070.0248.16
5.1.00.0060.0368.16
5.0.50.0060.0316.63
5.0.40.0080.0256.50
5.0.30.0070.0446.30
5.0.20.0090.0236.28
5.0.10.0080.0246.25
5.0.00.0080.0446.25
4.4.90.0130.0394.78
4.4.80.0050.0224.75
4.4.70.0070.0184.75
4.4.60.0030.0234.76
4.4.50.0050.0264.77
4.4.40.0060.0364.71
4.4.30.0050.0224.76
4.4.20.0040.0294.84
4.4.10.0060.0224.85
4.4.00.0090.0284.76
4.3.110.0100.0234.67
4.3.100.0080.0214.67
4.3.90.0060.0224.63
4.3.80.0080.0274.58
4.3.70.0060.0194.63
4.3.60.0060.0174.63
4.3.50.0050.0204.63
4.3.40.0040.0294.54
4.3.30.0030.0163.30
4.3.20.0030.0213.27
4.3.10.0020.0213.24
4.3.00.0000.01310.31

preferences:
56.1 ms | 401 KiB | 5 Q