3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getIPStringForFullDNS($ip, $class) { $limits = array('A' => -3, 'B' => -2, 'C' => -1, 'D' => 0); $limit = $limits[$class]; $ip = implode('.', explode('.', $ip, $limit)); $ip .= str_repeat('.*', abs($limit)); return $ip; } echo getIPStringForFullDNS('158.58.169.254', 'A') . "\n"; echo getIPStringForFullDNS('158.58.169.254', 'B') . "\n"; echo getIPStringForFullDNS('158.58.169.254', 'C') . "\n"; echo getIPStringForFullDNS('158.58.169.254', 'D') . "\n";

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)
8.3.60.0150.00418.43
8.3.50.0140.00322.10
8.3.40.0140.00718.66
8.3.30.0130.00719.13
8.3.20.0050.00320.21
8.3.10.0040.00422.09
8.3.00.0030.00622.39
8.2.180.0120.00316.50
8.2.170.0070.00722.96
8.2.160.0120.00320.94
8.2.150.0030.00524.18
8.2.140.0050.00324.66
8.2.130.0000.00726.16
8.2.120.0040.00417.75
8.2.110.0000.00822.02
8.2.100.0090.00317.91
8.2.90.0040.00419.25
8.2.80.0080.00018.16
8.2.70.0050.00317.60
8.2.60.0040.00418.05
8.2.50.0050.00318.07
8.2.40.0040.00418.16
8.2.30.0050.00518.03
8.2.20.0040.00417.82
8.2.10.0000.00717.80
8.2.00.0030.00617.75
8.1.280.0150.00325.92
8.1.270.0070.00023.85
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00623.81
8.1.230.0040.00719.17
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0030.00617.38
8.1.190.0030.00517.39
8.1.180.0030.00518.10
8.1.170.0060.00318.59
8.1.160.0050.00521.93
8.1.150.0070.00018.54
8.1.140.0000.00717.45
8.1.130.0040.00417.82
8.1.120.0030.00317.46
8.1.110.0000.00717.44
8.1.100.0080.00017.36
8.1.90.0030.00417.38
8.1.80.0000.00717.44
8.1.70.0030.00317.47
8.1.60.0030.00517.67
8.1.50.0000.00717.44
8.1.40.0030.00517.52
8.1.30.0060.00317.64
8.1.20.0000.00817.63
8.1.10.0050.00217.55
8.1.00.0030.00617.53
8.0.300.0000.00718.77
8.0.290.0050.00317.18
8.0.280.0030.00318.43
8.0.270.0040.00416.78
8.0.260.0000.00616.77
8.0.250.0000.00716.95
8.0.240.0040.00416.89
8.0.230.0070.00016.84
8.0.220.0030.00316.88
8.0.210.0050.00216.80
8.0.200.0000.00716.95
8.0.190.0000.00816.97
8.0.180.0040.00416.85
8.0.170.0050.00216.92
8.0.160.0000.00716.83
8.0.150.0040.00416.85
8.0.140.0000.00716.73
8.0.130.0060.00013.35
8.0.120.0040.00416.75
8.0.110.0000.00716.84
8.0.100.0070.00016.95
8.0.90.0040.00416.75
8.0.80.0130.01016.90
8.0.70.0040.00416.76
8.0.60.0070.00016.81
8.0.50.0040.00416.74
8.0.30.0120.00717.01
8.0.20.0100.01217.40
8.0.10.0000.00816.82
8.0.00.0060.01116.59
7.4.330.0000.00515.00
7.4.320.0030.00316.46
7.4.300.0030.00316.50
7.4.290.0070.00016.65
7.4.280.0080.00016.49
7.4.270.0080.00016.41
7.4.260.0030.00316.38
7.4.250.0000.00816.46
7.4.240.0040.00416.58
7.4.230.0000.00716.52
7.4.220.0070.01116.54
7.4.210.0070.00916.49
7.4.200.0000.00716.32
7.4.190.0070.00016.66
7.4.160.0060.00916.56
7.4.150.0170.00317.40
7.4.140.0110.00817.86
7.4.130.0130.00816.57
7.4.120.0130.00316.53
7.4.110.0060.01116.45
7.4.100.0090.01516.33
7.4.90.0140.00816.55
7.4.80.0020.01716.41
7.4.70.0130.01016.41
7.4.60.0090.00916.59
7.4.50.0000.00416.21
7.4.40.0100.00622.77
7.4.30.0060.00916.53
7.4.00.0030.01415.04
7.3.330.0030.00313.26
7.3.320.0060.00013.18
7.3.310.0000.00716.14
7.3.300.0000.00716.29
7.3.290.0070.01116.22
7.3.280.0120.00616.25
7.3.270.0080.01217.40
7.3.260.0070.01716.21
7.3.250.0040.01416.36
7.3.240.0070.01016.38
7.3.230.0060.01016.42
7.3.210.0120.00616.44
7.3.200.0090.00919.39
7.3.190.0110.01116.46
7.3.180.0060.01016.34
7.3.170.0060.00916.27
7.3.160.0120.00416.43
7.3.120.0030.01014.85
7.3.110.0070.00714.67
7.3.100.0060.00614.63
7.3.90.0130.00314.71
7.3.80.0120.00314.76
7.3.70.0000.00814.80
7.3.60.0000.01714.75
7.3.50.0080.00614.57
7.3.40.0030.01414.68
7.3.30.0040.00814.76
7.3.20.0000.01216.55
7.3.10.0030.01416.35
7.3.00.0090.00616.63
7.2.330.0100.00616.68
7.2.320.0130.00316.86
7.2.310.0080.00816.68
7.2.300.0100.01016.46
7.2.290.0120.00416.77
7.2.240.0030.01015.13
7.2.230.0040.01114.81
7.2.220.0090.00614.79
7.2.210.0150.00015.25
7.2.200.0080.00314.91
7.2.190.0070.00714.93
7.2.180.0060.00914.92
7.2.170.0030.01014.89
7.2.160.0070.00715.01
7.2.150.0040.01417.04
7.2.140.0030.01216.61
7.2.130.0070.00416.90
7.2.120.0000.01316.87
7.2.110.0130.00316.65
7.2.100.0090.00616.91
7.2.90.0060.00616.85
7.2.80.0030.01416.92
7.2.70.0040.01116.89
7.2.60.0070.01016.72
7.2.50.0030.01016.93
7.2.40.0100.00716.98
7.2.30.0070.01017.06
7.2.20.0000.01317.04
7.2.10.0090.00917.04
7.2.00.0030.01118.04
7.1.330.0130.00316.08
7.1.320.0000.01015.86
7.1.310.0030.00715.85
7.1.300.0070.01015.55
7.1.290.0060.01015.89
7.1.280.0130.00315.65
7.1.270.0040.01115.77
7.1.260.0110.00415.71
7.1.250.0070.00715.98
7.1.100.0690.00715.63
7.1.70.0000.01017.20
7.1.60.0070.01819.82
7.1.50.0100.01017.09
7.1.00.0070.07322.48
7.0.200.0030.01016.62
7.0.140.0000.07722.09
7.0.60.0200.08019.89
7.0.50.0030.07717.98
7.0.40.0070.09020.18
7.0.30.0300.08020.06
7.0.20.0200.07320.12
7.0.10.0230.06320.19
7.0.00.0130.07720.29
5.6.280.0130.06320.87
5.6.210.0030.04720.51
5.6.200.0100.05018.13
5.6.190.0000.04720.61
5.6.180.0330.04320.43
5.6.170.0270.07320.54
5.6.160.0100.03720.50
5.6.150.0070.07018.18
5.6.140.0070.03718.21
5.6.130.0100.08018.21
5.6.120.0170.07321.02
5.6.110.0070.06020.96
5.6.100.0030.05720.96
5.6.90.0100.08321.08
5.6.80.0070.07320.46
5.5.350.0170.08720.44
5.5.340.0030.04018.09
5.5.330.0030.09020.27
5.5.320.2200.03320.32
5.5.310.0230.07320.27
5.5.300.0030.06718.01
5.5.290.0200.07017.95
5.5.280.0130.03320.73
5.5.270.0030.04020.65
5.5.260.0100.07720.87
5.5.250.0030.08720.70
5.5.240.0170.07020.15
5.4.450.0200.05319.42
5.4.440.0070.04719.46
5.4.430.0130.04019.46
5.4.420.0200.03719.19
5.4.410.0270.02719.14
5.4.400.0170.03319.16
5.4.390.0130.04319.25
5.4.380.0230.02718.95
5.4.370.0100.04019.32
5.4.360.0100.04719.13
5.4.350.0170.03319.22
5.4.340.0170.03719.09
5.4.320.0230.03719.24
5.4.310.0130.04018.87
5.4.300.0170.05318.91
5.4.290.0230.03719.31
5.4.280.0170.06319.25
5.4.270.0200.03719.21
5.4.260.0130.04319.06
5.4.250.0170.05018.98
5.4.240.0130.05318.84
5.4.230.0130.04318.84
5.4.220.0270.06318.88
5.4.210.0370.05319.16
5.4.200.0200.08019.08
5.4.190.0200.05718.97
5.4.180.0130.06319.15
5.4.170.0170.04319.07
5.4.160.0170.05719.14
5.4.150.0200.04019.12
5.4.140.0270.05316.55
5.4.130.0270.03716.51
5.4.120.0200.04016.37
5.4.110.0100.05016.38
5.4.100.0200.03316.54
5.4.90.0200.03716.35
5.4.80.0230.04716.24
5.4.70.0230.04316.17
5.4.60.0300.06016.43
5.4.50.0200.07016.32
5.4.40.0100.04716.45
5.4.30.0200.07016.35
5.4.20.0130.04016.51
5.4.10.0270.03716.24
5.4.00.0170.03715.96
5.3.290.0130.04314.79
5.3.280.0270.06014.58
5.3.270.0170.04014.69
5.3.260.0170.05014.68
5.3.250.0200.03714.61
5.3.240.0230.06714.62
5.3.230.0270.03714.52
5.3.220.0270.03314.73
5.3.210.0170.04714.57
5.3.200.0200.05014.55
5.3.190.0270.06714.49
5.3.180.0170.04714.47
5.3.170.0270.06714.64
5.3.160.0270.05714.56
5.3.150.0200.07714.64
5.3.140.0230.04314.55
5.3.130.0200.07714.52
5.3.120.0270.05714.53
5.3.110.0270.04714.77
5.3.100.0100.05014.05
5.3.90.0300.06713.90
5.3.80.0170.04013.99
5.3.70.0230.04013.95
5.3.60.0230.05714.12
5.3.50.0230.04013.97
5.3.40.0230.06313.85
5.3.30.0230.06013.81
5.3.20.0230.06013.81
5.3.10.0300.05013.59
5.3.00.0270.04013.73
5.2.170.0200.03712.05
5.2.160.0200.03012.05
5.2.150.0200.05012.05
5.2.140.0270.05712.05
5.2.130.0200.06012.05
5.2.120.0200.05712.05
5.2.110.0100.03312.05
5.2.100.0130.03712.05
5.2.90.0200.03312.05
5.2.80.0200.04012.05
5.2.70.0170.06012.05
5.2.60.0270.05312.05
5.2.50.0230.03312.05
5.2.40.0200.04712.05
5.2.30.0130.04312.05
5.2.20.0170.04312.05
5.2.10.0170.03712.05
5.2.00.0130.04012.05
5.1.60.0100.03012.05
5.1.50.0170.03312.05
5.1.40.0130.04712.05
5.1.30.0230.05012.05
5.1.20.0170.05312.05
5.1.10.0130.02712.05
5.1.00.0170.04312.05
5.0.50.0070.04712.05
5.0.40.0100.04012.05
5.0.30.0070.06712.05
5.0.20.0130.03312.05
5.0.10.0070.04312.05
5.0.00.0070.05312.05
4.4.90.0070.02012.05
4.4.80.0030.02312.05
4.4.70.0030.02312.05
4.4.60.0100.01012.05
4.4.50.0130.02312.05
4.4.40.0070.03312.05
4.4.30.0070.02312.05
4.4.20.0070.03012.05
4.4.10.0030.04012.05
4.4.00.0070.05012.05
4.3.110.0130.03012.05
4.3.100.0130.01312.05
4.3.90.0070.03712.05
4.3.80.0030.04012.05
4.3.70.0070.03012.05
4.3.60.0070.01712.05
4.3.50.0170.02712.05
4.3.40.0100.02012.05
4.3.30.0070.03312.05
4.3.20.0030.03312.05
4.3.10.0030.03012.05
4.3.00.0030.02712.05

preferences:
49.7 ms | 401 KiB | 5 Q