3v4l.org

run code in 300+ PHP versions simultaneously
<?php function is_hex($hex_code) { return @preg_match("/^[a-f0-9]{2,}$/i", $hex_code) && !(strlen($hex_code) & 1); } var_dump(is_hex("A0b5"));

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)
8.3.60.0040.01118.43
8.3.50.0110.00522.00
8.3.40.0090.00618.84
8.3.30.0100.00318.92
8.3.20.0040.00420.35
8.3.10.0000.00822.10
8.3.00.0000.00822.37
8.2.180.0140.00716.75
8.2.170.0070.00722.96
8.2.160.0000.01420.95
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0030.00526.16
8.2.120.0000.00819.23
8.2.110.0000.00922.11
8.2.100.0060.00619.57
8.2.90.0050.00219.17
8.2.80.0000.00817.97
8.2.70.0000.00917.63
8.2.60.0040.00417.68
8.2.50.0030.00618.07
8.2.40.0040.00417.97
8.2.30.0000.00718.01
8.2.20.0040.00417.64
8.2.10.0050.00319.41
8.2.00.0000.00717.67
8.1.280.0110.01125.92
8.1.270.0090.00022.19
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0060.00323.81
8.1.230.0110.00019.07
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0030.00717.13
8.1.190.0040.00417.41
8.1.180.0030.00518.66
8.1.170.0060.00318.62
8.1.160.0050.00222.00
8.1.150.0030.00618.63
8.1.140.0030.00617.41
8.1.130.0080.00017.63
8.1.120.0040.00417.57
8.1.110.0100.00017.42
8.1.100.0030.00317.49
8.1.90.0050.00317.42
8.1.80.0030.00317.46
8.1.70.0040.00417.40
8.1.60.0030.00617.66
8.1.50.0050.00217.50
8.1.40.0050.00317.53
8.1.30.0060.00317.67
8.1.20.0060.00317.58
8.1.10.0000.00817.50
8.1.00.0040.00417.45
8.0.300.0040.00418.77
8.0.290.0000.00716.93
8.0.280.0000.00818.39
8.0.270.0050.00316.84
8.0.260.0040.00416.85
8.0.250.0000.00717.02
8.0.240.0000.00716.98
8.0.230.0000.00717.05
8.0.220.0040.00416.86
8.0.210.0040.00416.98
8.0.200.0020.00516.98
8.0.190.0070.00016.95
8.0.180.0000.00716.89
8.0.170.0040.00416.98
8.0.160.0000.00716.84
8.0.150.0040.00416.99
8.0.140.0050.00216.90
8.0.130.0000.00613.38
8.0.120.0000.00717.02
8.0.110.0050.00316.89
8.0.100.0000.00816.92
8.0.90.0000.00816.86
8.0.80.0030.01216.95
8.0.70.0040.00416.84
8.0.60.0000.00816.84
8.0.50.0040.00416.81
8.0.30.0140.01017.06
8.0.20.0100.00917.40
8.0.10.0040.00417.03
8.0.00.0110.00716.80
7.4.330.0000.00515.09
7.4.320.0030.00316.74
7.4.300.0030.00316.71
7.4.290.0030.00316.64
7.4.280.0000.00716.64
7.4.270.0070.00016.78
7.4.260.0050.00216.64
7.4.250.0000.00716.70
7.4.240.0030.00416.78
7.4.230.0070.00016.64
7.4.220.0070.01016.66
7.4.210.0090.00716.70
7.4.200.0070.00016.56
7.4.190.0000.00716.80
7.4.160.0100.00616.69
7.4.150.0160.00817.40
7.4.140.0070.01017.86
7.4.130.0110.00616.61
7.4.120.0080.01016.68
7.4.110.0030.01916.54
7.4.100.0120.01216.76
7.4.90.0070.01716.70
7.4.80.0130.00919.39
7.4.70.0080.01416.69
7.4.60.0080.00816.59
7.4.50.0060.00316.73
7.4.40.0030.01322.77
7.4.30.0100.00716.54
7.4.00.0100.00715.29
7.3.330.0000.00513.30
7.3.320.0030.00313.44
7.3.310.0030.00316.35
7.3.300.0040.00416.49
7.3.290.0080.00816.50
7.3.280.0130.00416.48
7.3.270.0080.00817.40
7.3.260.0160.00016.45
7.3.250.0120.01216.78
7.3.240.0090.00916.55
7.3.230.0070.01016.46
7.3.210.0060.01116.45
7.3.200.0100.00719.39
7.3.190.0120.00616.70
7.3.180.0060.00916.52
7.3.170.0150.00616.77
7.3.160.0040.01116.60
7.3.120.0100.00614.98
7.3.10.0080.00716.78
7.3.00.0040.01016.77
7.2.330.0030.01416.84
7.2.320.0100.00716.86
7.2.310.0120.00916.80
7.2.300.0030.01916.68
7.2.290.0140.00316.72
7.2.130.0050.00916.96
7.2.120.0070.00617.15
7.2.110.0070.00616.94
7.2.100.0050.00717.03
7.2.90.0050.00816.99
7.2.80.0100.00616.97
7.2.70.0070.00816.86
7.2.60.0080.00517.00
7.2.50.0080.00816.97
7.2.40.0090.00717.07
7.2.30.0030.00916.99
7.2.20.0070.00716.87
7.2.10.0060.00716.91
7.2.00.0070.00917.58
7.1.250.0080.00815.81
7.1.230.0090.00615.93
7.1.220.0070.00415.86
7.1.210.0040.00815.85
7.1.200.0070.00716.12
7.1.190.0130.00015.89
7.1.180.0030.00615.74
7.1.170.0080.00416.11
7.1.160.0070.00715.86
7.1.150.0030.00615.89
7.1.140.0030.00915.91
7.1.130.0100.00315.76
7.1.120.0000.01615.58
7.1.110.0040.01116.00
7.1.100.0010.01116.95
7.1.90.0030.00316.04
7.1.80.0070.00316.02
7.1.70.0060.00616.57
7.1.60.0080.01217.95
7.1.50.0000.01416.54
7.1.40.0060.01016.30
7.1.30.0000.01715.99
7.1.20.0060.01316.15
7.1.10.0030.00916.01
7.1.00.0050.04019.16
7.0.310.0030.00515.49
7.0.300.0060.00615.45
7.0.290.0160.00015.38
7.0.280.0060.00915.73
7.0.270.0000.00915.43
7.0.260.0060.00615.43
7.0.250.0030.00715.86
7.0.240.0100.00315.39
7.0.230.0030.00815.75
7.0.220.0000.01115.44
7.0.210.0070.00715.61
7.0.200.0080.00416.14
7.0.190.0040.01115.48
7.0.180.0030.00715.43
7.0.170.0030.01015.75
7.0.160.0060.00915.50
7.0.150.0030.01015.67
7.0.140.0030.04018.92
7.0.130.0000.00815.67
7.0.120.0000.00715.52
7.0.110.0030.00615.68
7.0.100.0030.00915.28
7.0.90.0070.00715.51
7.0.80.0060.00615.44
7.0.70.0030.00915.60
7.0.60.0130.02717.72
7.0.50.0050.04316.61
7.0.40.0050.04916.92
7.0.30.0100.02717.06
7.0.20.0190.04116.88
7.0.10.0030.03016.79
7.0.00.0090.03716.79
5.6.380.0060.00914.58
5.6.370.0080.00414.03
5.6.360.0040.01114.64
5.6.350.0030.01314.45
5.6.340.0030.00914.50
5.6.330.0090.00614.26
5.6.320.0040.00414.40
5.6.310.0060.00614.33
5.6.300.0000.01214.14
5.6.290.0080.00014.43
5.6.280.0060.00614.61
5.6.270.0030.00914.45
5.6.260.0030.01014.24
5.6.250.0090.00414.55
5.6.240.0070.00414.39
5.6.230.0040.00814.58
5.6.220.0030.00914.24
5.6.210.0080.04017.30
5.6.200.0050.03516.37
5.6.190.0030.03617.41
5.6.180.0170.04117.43
5.6.170.0100.02317.51
5.6.160.0090.04517.36
5.6.150.0070.04216.25
5.6.140.0110.04016.36
5.6.130.0100.04216.27
5.6.120.0070.04017.77
5.6.110.0040.02317.73
5.6.100.0100.02317.74
5.6.90.0140.03717.69
5.6.80.0070.04417.50
5.6.70.0040.01114.38
5.6.60.0120.00314.06
5.6.50.0100.00314.30
5.6.40.0030.01414.29
5.6.30.0070.00314.39
5.6.20.0000.01314.54
5.6.10.0120.00314.27
5.6.00.0030.01014.13
5.5.380.0070.00311.02
5.5.370.0030.00910.97
5.5.360.0060.00311.28
5.5.350.0130.02815.78
5.5.340.0030.04314.64
5.5.330.0000.04915.94
5.5.320.0350.03515.69
5.5.310.0160.04116.00
5.5.300.0030.03014.72
5.5.290.0080.03014.71
5.5.280.0110.03815.90
5.5.270.0100.03216.05
5.5.260.0110.03216.05
5.5.250.0180.03215.74
5.5.240.0030.01915.61
5.5.230.0040.00711.18
5.5.220.0030.00611.27
5.5.210.0040.00410.91
5.5.200.0060.00311.30
5.5.190.0080.00411.17
5.5.180.0030.00711.41
5.5.170.0100.00314.39
5.5.160.0040.00811.18
5.5.150.0000.01111.28
5.5.140.0000.00911.27
5.5.130.0060.00611.38
5.5.120.0120.00011.20
5.5.110.0000.00511.10
5.5.100.0080.00011.06
5.5.90.0000.00710.89
5.5.80.0030.00610.91
5.5.70.0000.01111.19
5.5.60.0000.00911.09
5.5.50.0030.00911.05
5.5.40.0030.00311.12
5.5.30.0040.00811.35
5.5.20.0110.00010.86
5.5.10.0100.00011.01
5.5.00.0100.00010.93
5.4.450.1850.02315.18
5.4.440.0080.04015.33
5.4.430.0800.03015.22
5.4.420.1720.02515.23
5.4.410.2270.02315.08
5.4.400.1820.02415.25
5.4.390.0070.03815.11
5.4.380.2220.02315.17
5.4.370.2040.02015.24
5.4.360.2110.02315.13
5.4.350.2370.02015.10
5.4.340.2180.02015.12
5.4.330.0030.00910.94
5.4.320.0090.03715.10
5.4.310.1600.02515.10
5.4.300.2370.01915.03
5.4.290.2130.02215.16
5.4.280.2270.01915.21
5.4.270.2210.02315.11
5.4.260.2200.02215.09
5.4.250.2310.02315.03
5.4.240.2220.01515.05
5.4.230.2370.02315.25
5.4.220.2370.02115.12
5.4.210.2170.02215.18
5.4.200.1980.02214.97
5.4.190.1790.02415.02
5.4.180.1870.02015.18
5.4.170.1860.01815.17
5.4.160.1830.02515.06
5.4.150.1830.02414.84
5.4.140.1860.01813.78
5.4.130.1700.01913.76
5.4.120.1810.01613.75
5.4.110.2160.01513.94
5.4.100.1870.02013.77
5.4.90.2000.02213.77
5.4.80.2320.01913.65
5.4.70.1880.02313.79
5.4.60.2240.02013.79
5.4.50.2080.02113.85
5.4.40.1800.02113.85
5.4.30.1770.02513.54
5.4.20.2280.02313.76
5.4.10.2080.02513.60
5.4.00.2250.01913.50
5.3.290.0050.04512.64
5.3.280.2300.02112.60
5.3.270.1820.02012.63
5.3.260.1870.02012.58
5.3.250.1840.02012.67
5.3.240.2050.02412.60
5.3.230.1820.02012.68
5.3.220.1850.01712.60
5.3.210.2090.02412.59
5.3.200.2060.02212.55
5.3.190.2000.02212.55
5.3.180.2240.02012.66
5.3.170.2120.01312.64
5.3.160.2340.02012.60
5.3.150.2370.02212.70
5.3.140.1790.02112.60
5.3.130.1870.01712.61
5.3.120.2330.02612.59
5.3.110.2360.01812.59
5.3.100.2110.02112.33
5.3.90.1900.02512.33
5.3.80.1820.02412.34
5.3.70.1830.02012.34
5.3.60.2160.02112.32
5.3.50.1960.02012.31
5.3.40.1890.02112.31
5.3.30.1820.01712.34
5.3.20.1830.02012.24
5.3.10.1930.02012.16
5.3.00.1950.02212.15
5.2.170.1700.01510.95
5.2.160.1620.01810.88
5.2.150.1810.01510.88
5.2.140.1950.02010.87
5.2.130.1750.01910.94
5.2.120.1850.01210.86
5.2.110.1630.01710.89
5.2.100.1680.01710.84
5.2.90.1680.01910.85
5.2.80.2000.02110.88
5.2.70.1930.01710.81
5.2.60.1800.01810.83
5.2.50.1790.01510.81
5.2.40.1270.01710.75
5.2.30.1420.01610.78
5.2.20.1530.01810.81
5.2.10.1620.01510.73
5.2.00.1580.01810.69
5.1.60.1450.01110.28
5.1.50.1470.01510.32
5.1.40.1250.01310.32
5.1.30.1600.01210.48
5.1.20.1580.01310.48
5.1.10.1510.01310.37
5.1.00.1570.01110.36
5.0.50.0960.0109.59
5.0.40.0760.0119.54
5.0.30.0770.0199.37
5.0.20.0750.0109.44
5.0.10.0640.0119.40
5.0.00.0700.0219.34
4.4.90.0780.0108.37
4.4.80.0730.0088.37
4.4.70.0850.0108.37
4.4.60.0870.0118.37
4.4.50.0750.0118.37
4.4.40.0880.0178.37
4.4.30.0870.0168.37
4.4.20.0840.0098.37
4.4.10.0900.0118.37
4.4.00.0790.0158.37
4.3.110.0730.0128.37
4.3.100.0700.0078.37
4.3.90.0580.0098.37
4.3.80.0830.0148.37
4.3.70.0910.0088.37
4.3.60.0720.0088.37
4.3.50.0780.0108.37
4.3.40.0850.0178.37
4.3.30.0540.0108.37
4.3.20.0420.0128.37
4.3.10.0480.0128.37
4.3.00.0390.0118.37

preferences:
43.32 ms | 401 KiB | 5 Q