3v4l.org

run code in 300+ PHP versions simultaneously
<? $x = 'a'; echo preg_match('[0-9a-zA-Z]', $x); echo preg_match('~[0-9a-zA-Z]~', $x); echo preg_match('~[0-9a-zA-Z]+~', $x); ?>

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)
8.3.60.0090.00618.31
8.3.50.0080.01120.94
8.3.40.0120.00318.71
8.3.30.0070.00718.88
8.3.20.0000.00720.04
8.3.10.0050.00323.52
8.3.00.0040.00419.13
8.2.180.0160.00316.63
8.2.170.0040.01122.96
8.2.160.0120.00820.43
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0000.00922.12
8.2.110.0030.00620.52
8.2.100.0050.00518.03
8.2.90.0040.00419.23
8.2.80.0050.00317.97
8.2.70.0090.00017.63
8.2.60.0030.00817.91
8.2.50.0030.00518.07
8.2.40.0040.00419.67
8.2.30.0000.00717.88
8.2.20.0050.00217.45
8.2.10.0040.00417.97
8.2.00.0000.00717.60
8.1.280.0070.00725.92
8.1.270.0040.00423.97
8.1.260.0050.00226.35
8.1.250.0070.00028.09
8.1.240.0090.00023.82
8.1.230.0070.00419.00
8.1.220.0000.00817.74
8.1.210.0070.00018.77
8.1.200.0090.00017.10
8.1.190.0040.00417.23
8.1.180.0080.00018.10
8.1.170.0040.00418.37
8.1.160.0000.00721.93
8.1.150.0000.00718.67
8.1.140.0040.00417.17
8.1.130.0030.00317.62
8.1.120.0000.00717.33
8.1.110.0040.00417.36
8.1.100.0050.00217.22
8.1.90.0080.00017.31
8.1.80.0000.00717.19
8.1.70.0000.00617.23
8.1.60.0040.00417.45
8.1.50.0000.00817.36
8.1.40.0070.00017.26
8.1.30.0050.00317.54
8.1.20.0050.00217.52
8.1.10.0000.00717.38
8.1.00.0000.00917.38
8.0.300.0000.00718.77
8.0.290.0070.00016.63
8.0.280.0000.00718.46
8.0.270.0070.00017.14
8.0.260.0060.00017.09
8.0.250.0000.00716.81
8.0.240.0030.00316.78
8.0.230.0030.00516.69
8.0.220.0000.00716.66
8.0.210.0030.00316.82
8.0.200.0030.00316.77
8.0.190.0000.00716.82
8.0.180.0030.00516.68
8.0.170.0000.00716.82
8.0.160.0000.00716.73
8.0.150.0000.00816.77
8.0.140.0000.00716.75
8.0.130.0060.00013.43
8.0.120.0040.00416.67
8.0.110.0000.00716.76
8.0.100.0040.00416.84
8.0.90.0030.00516.57
8.0.80.0090.00616.66
8.0.70.0000.00716.77
8.0.60.0040.00416.58
8.0.50.0000.00716.79
8.0.30.0080.01216.97
8.0.20.0110.01217.40
8.0.10.0060.00316.82
8.0.00.0080.01216.63
7.4.330.0020.00215.02
7.4.320.0030.00316.38
7.4.300.0000.00616.32
7.4.290.0040.00416.45
7.4.280.0000.00816.43
7.4.270.0000.00716.45
7.4.260.0020.00516.46
7.4.250.0000.00716.43
7.4.240.0030.00416.36
7.4.230.0030.00316.55
7.4.220.0160.00316.36
7.4.210.0090.00616.46
7.4.200.0030.00316.49
7.4.160.0060.01016.16
7.4.150.0060.01417.40
7.4.140.0140.00617.86
7.4.130.0100.00816.27
7.4.120.0090.00916.39
7.4.110.0070.01016.56
7.4.100.0120.00616.37
7.4.90.0110.00716.35
7.4.80.0090.00919.39
7.4.70.0080.01216.20
7.4.60.0150.00516.16
7.4.50.0030.00616.34
7.4.40.0030.01716.47
7.4.30.0090.01116.33
7.4.00.0090.00614.82
7.3.330.0000.00713.04
7.3.320.0000.00613.05
7.3.310.0070.00015.97
7.3.300.0030.00316.07
7.3.290.0090.00616.16
7.3.280.0080.00816.13
7.3.270.0100.00717.40
7.3.260.0150.00916.66
7.3.250.0070.00916.36
7.3.240.0110.01116.12
7.3.230.0080.00816.39
7.3.210.0070.01016.14
7.3.200.0060.01319.39
7.3.190.0120.00916.10
7.3.180.0090.00616.33
7.3.170.0000.01616.27
7.3.160.0150.00616.29
7.3.120.0060.01314.70
7.3.110.0110.00714.61
7.3.100.0070.00714.82
7.3.90.0030.00714.56
7.3.80.0070.00714.66
7.3.70.0000.01414.86
7.3.60.0080.00814.64
7.3.50.0090.00314.72
7.3.40.0030.01314.38
7.3.30.0080.00414.81
7.3.20.0120.00316.44
7.3.10.0000.00916.35
7.3.00.0100.00316.55
7.2.330.0050.01116.44
7.2.320.0150.00716.36
7.2.310.0130.00316.54
7.2.300.0100.00716.47
7.2.290.0100.01316.29
7.2.250.0040.01414.65
7.2.240.0170.00314.94
7.2.230.0070.00714.62
7.2.220.0060.00614.75
7.2.210.0060.00914.91
7.2.200.0040.01114.75
7.2.190.0030.01014.45
7.2.180.0080.00414.57
7.2.170.0040.01114.67
7.2.80.0080.01616.29
7.2.60.0060.00917.04
7.2.00.0080.01119.27
7.1.330.0070.01015.55
7.1.320.0070.00715.64
7.1.310.0030.00815.32
7.1.300.0000.01115.62
7.1.290.0060.00615.58
7.1.280.0070.01015.64
7.1.270.0030.00715.65
7.1.260.0070.00715.64
7.1.200.0030.00915.89
7.1.100.0070.00718.36
7.1.70.0040.00417.43
7.1.60.0130.01019.11
7.1.50.0100.01317.10
7.1.00.0030.07722.34
7.0.200.0040.00417.02
7.0.140.0070.06721.98
7.0.60.0100.07319.95
7.0.50.0100.05017.88
7.0.40.0070.08720.06
7.0.30.0070.05020.10
7.0.20.0400.07020.32
7.0.10.0070.04720.43
7.0.00.0030.04720.04
5.6.280.0000.07720.98
5.6.210.0170.05720.50
5.6.200.0030.05718.09
5.6.190.0200.07020.45
5.6.180.0070.06720.49
5.6.170.0300.08020.41
5.6.160.0100.08020.48
5.6.150.0070.05318.22
5.6.140.0070.05718.21
5.6.130.0070.04018.07
5.6.120.0000.04320.99
5.6.110.0070.08321.01
5.6.100.0000.04321.02
5.6.90.0030.07720.95
5.6.80.0130.06020.50
5.6.70.4430.03720.38
5.5.350.0100.08320.45
5.5.340.0000.05717.98
5.5.330.0030.09020.15
5.5.320.0330.06720.21
5.5.310.0300.04720.33
5.5.300.0100.08017.95
5.5.290.0030.04017.98
5.5.280.0100.05020.79
5.5.270.0030.07720.76
5.5.260.0070.08320.96
5.5.250.0000.08020.58
5.5.240.0170.03320.06
5.4.450.0970.08019.27
5.4.440.0930.07019.44
5.4.430.1100.05719.32
5.4.420.0830.00019.63
5.4.410.0670.00019.21
5.4.400.0630.00019.07
5.4.390.0630.00019.13
5.4.380.0900.00019.25
5.4.370.0630.00019.08
5.4.360.0670.00018.92
5.4.350.0700.00019.07
5.4.340.0030.03611.97
5.4.320.0090.03212.45
5.4.310.0050.03912.45
5.4.300.0040.03912.45
5.4.290.0060.04212.45
5.4.280.0050.03612.34
5.4.270.0070.03512.35
5.4.260.0050.03812.35
5.4.250.0040.03912.34
5.4.240.0030.03912.35
5.4.230.0040.04212.34
5.4.220.0040.04012.34
5.4.210.0070.03612.34
5.4.200.0070.04112.34
5.4.190.0060.03712.33
5.4.180.0090.03612.34
5.4.170.0050.03812.34
5.4.160.0080.03412.34
5.4.150.0090.04212.34
5.4.140.0050.03712.02
5.4.130.0050.03812.01
5.4.120.0060.03611.97
5.4.110.0050.03711.96
5.4.100.0080.03511.96
5.4.90.0060.03711.96
5.4.80.0100.03311.96
5.4.70.0080.03311.96
5.4.60.0090.03211.96
5.4.50.0050.03611.96
5.4.40.0030.03911.95
5.4.30.0070.03711.95
5.4.20.0060.03911.95
5.4.10.0050.04311.95
5.4.00.0050.03811.43
5.3.290.0080.04012.80
5.3.280.0080.03712.71
5.3.270.0140.04312.72
5.3.260.0070.04912.71
5.3.250.0070.04812.72
5.3.240.0080.04212.72
5.3.230.0110.04812.71
5.3.220.0090.04212.68
5.3.210.0030.04312.68
5.3.200.0040.03812.68
5.3.190.0050.03812.68
5.3.180.0070.03612.67
5.3.170.0090.03312.67
5.3.160.0060.03712.67
5.3.150.0080.03612.68
5.3.140.0070.03612.66
5.3.130.0060.04212.66
5.3.120.0080.03812.66
5.3.110.0070.04112.66
5.3.100.0070.04112.12
5.3.90.0040.03912.08
5.3.80.0100.03312.07
5.3.70.0050.03812.08
5.3.60.0020.04012.07
5.3.50.0040.03912.00
5.3.40.0070.04112.00
5.3.30.0120.03911.94
5.3.20.0070.03411.72
5.3.10.0010.04611.69
5.3.00.0070.03611.67
5.2.170.0060.0299.17
5.2.160.0040.0309.18
5.2.150.0050.0329.17
5.2.140.0050.0309.17
5.2.130.0080.0259.13
5.2.120.0050.0289.13
5.2.110.0040.0309.14
5.2.100.0060.0279.13
5.2.90.0080.0269.13
5.2.80.0050.0379.13
5.2.70.0050.0299.13
5.2.60.0030.0329.08
5.2.50.0020.0329.05
5.2.40.0040.0299.03
5.2.30.0070.0289.01
5.2.20.0030.0309.00
5.2.10.0050.0288.92
5.2.00.0040.0318.77
5.1.60.0100.0228.05
5.1.50.0040.0328.05
5.1.40.0010.0298.04
5.1.30.0030.0288.39
5.1.20.0050.0268.41
5.1.10.0030.0308.13
5.1.00.0060.0238.13
5.0.50.0040.0206.61
5.0.40.0040.0196.47
5.0.30.0050.0296.28
5.0.20.0030.0226.25
5.0.10.0020.0216.23
5.0.00.0020.0326.22
4.4.90.0040.0144.78
4.4.80.0020.0234.75
4.4.70.0040.0174.76
4.4.60.0070.0164.75
4.4.50.0030.0174.77
4.4.40.0020.0334.71
4.4.30.0030.0174.75
4.4.20.0040.0164.84
4.4.10.0030.0164.85
4.4.00.0050.0264.76
4.3.110.0030.0154.67
4.3.100.0060.0124.66
4.3.90.0010.0164.63
4.3.80.0030.0244.58
4.3.70.0040.0134.63
4.3.60.0050.0124.63
4.3.50.0030.0154.62
4.3.40.0030.0244.54
4.3.30.0000.0193.27
4.3.20.0010.0173.25
4.3.10.0030.0143.21
4.3.00.0000.0277.28

preferences:
49.32 ms | 401 KiB | 5 Q