3v4l.org

run code in 300+ PHP versions simultaneously
<?php function buildNvpair($name, $value) { $nlen = strlen($name); $vlen = strlen($value); if ($nlen < 128) { /* nameLengthB0 */ $nvpair = chr($nlen); } else { /* nameLengthB3 & nameLengthB2 & nameLengthB1 & nameLengthB0 */ $nvpair = chr(($nlen >> 24) | 0x80) . chr(($nlen >> 16) & 0xFF) . chr(($nlen >> 8) & 0xFF) . chr($nlen & 0xFF); } if ($vlen < 128) { /* valueLengthB0 */ $nvpair .= chr($vlen); } else { /* valueLengthB3 & valueLengthB2 & valueLengthB1 & valueLengthB0 */ $nvpair .= chr(($vlen >> 24) | 0x80) . chr(($vlen >> 16) & 0xFF) . chr(($vlen >> 8) & 0xFF) . chr($vlen & 0xFF); } /* nameData & valueData */ return $nvpair . $name . $value; } $a = buildNvpair("keyword", "48260,49404,49412,49452,49454,49504,49539,49559,49609,49615,49616,49617,49618,49639,49688,49689,49691,49692,49696,49704,49724,49766,49767,49768,49769,49771,49772,49814,49857,49858,49861,49862,49863,49864,50544,50588,50617,50653,50665,50666,50667,50668,50669,50670,50671,50672,50673,50674,50675,50730,50731,50732,50733,50735,50736,50737,50750,50753,50754,50786,50788,50790,50800,50900,50901,50902,50903,50904,50905,50906,50907,50908,50909,50920,50921,50922,50923,50924,50925,50944,50979,50985,50987,50990,51101,51102,51103,51104,51105,51106,51107,51108,51109,51110,51111,51112,51113,51114,51115,51121");

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)
8.3.60.0110.00318.36
8.3.50.0090.00616.28
8.3.40.0090.00618.70
8.3.30.0120.00319.05
8.3.20.0080.00020.33
8.3.10.0000.00823.64
8.3.00.0000.00819.26
8.2.180.0070.00716.50
8.2.170.0070.00722.96
8.2.160.0110.00420.44
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0050.00226.16
8.2.120.0070.00022.06
8.2.110.0000.01019.23
8.2.100.0090.00317.75
8.2.90.0030.00619.21
8.2.80.0000.00817.97
8.2.70.0040.00417.63
8.2.60.0000.00818.04
8.2.50.0000.01118.07
8.2.40.0060.00319.88
8.2.30.0080.00018.06
8.2.20.0040.00417.77
8.2.10.0070.00018.14
8.2.00.0000.00817.77
8.1.280.0040.01125.92
8.1.270.0060.00323.88
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0040.00423.97
8.1.230.0080.00417.52
8.1.220.0060.00317.78
8.1.210.0000.00818.77
8.1.200.0000.01117.38
8.1.190.0030.00517.35
8.1.180.0040.00418.10
8.1.170.0030.01218.44
8.1.160.0000.00821.94
8.1.150.0070.00018.83
8.1.140.0040.00417.49
8.1.130.0050.00317.85
8.1.120.0030.00317.52
8.1.110.0030.00517.39
8.1.100.0040.00417.54
8.1.90.0040.00417.38
8.1.80.0030.00317.38
8.1.70.0030.00317.35
8.1.60.0080.00017.62
8.1.50.0040.00417.59
8.1.40.0040.00417.57
8.1.30.0000.00917.58
8.1.20.0050.00217.54
8.1.10.0000.00717.56
8.1.00.0000.00717.33
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0030.00518.37
8.0.270.0000.00817.18
8.0.260.0030.00317.26
8.0.250.0080.00017.02
8.0.240.0030.00316.97
8.0.230.0040.00317.01
8.0.220.0030.00316.94
8.0.210.0000.00616.89
8.0.200.0000.00716.86
8.0.190.0040.00416.95
8.0.180.0000.00816.89
8.0.170.0040.00416.82
8.0.160.0050.00216.96
8.0.150.0000.00716.81
8.0.140.0050.00316.80
8.0.130.0030.00313.38
8.0.120.0000.00816.99
8.0.110.0040.00416.87
8.0.100.0050.00316.86
8.0.90.0000.00716.80
8.0.80.0100.01316.87
8.0.70.0020.00516.90
8.0.60.0070.00016.81
8.0.50.0040.00416.80
8.0.30.0070.01217.28
8.0.20.0170.00817.40
8.0.10.0000.00816.81
8.0.00.0070.01216.88
7.4.330.0000.00515.14
7.4.320.0040.00416.61
7.4.300.0000.00616.63
7.4.290.0030.00316.66
7.4.280.0080.00016.54
7.4.270.0030.00516.54
7.4.260.0060.00316.50
7.4.250.0040.00416.63
7.4.240.0020.00516.61
7.4.230.0040.00416.65
7.4.220.0090.00916.61
7.4.210.0090.00616.54
7.4.200.0030.00316.42
7.4.160.0120.00316.47
7.4.150.0070.01117.40
7.4.140.0100.00917.86
7.4.130.0080.01116.48
7.4.120.0100.01116.60
7.4.110.0140.00316.55
7.4.100.0090.00916.50
7.4.90.0090.01216.48
7.4.80.0080.01819.39
7.4.70.0120.01216.59
7.4.60.0030.01416.62
7.4.50.0040.00416.34
7.4.40.0100.00716.45
7.4.30.0110.00816.59
7.4.00.0090.00314.73
7.3.330.0000.00513.38
7.3.320.0030.00313.34
7.3.310.0030.00316.34
7.3.300.0030.00316.24
7.3.290.0060.00916.37
7.3.280.0100.01116.39
7.3.270.0070.01017.40
7.3.260.0110.00716.61
7.3.250.0070.01116.51
7.3.240.0060.01016.51
7.3.230.0180.00016.54
7.3.210.0030.01316.62
7.3.200.0130.00319.39
7.3.190.0090.00916.39
7.3.180.0070.01116.62
7.3.170.0070.01016.57
7.3.160.0160.00016.35
7.2.330.0100.00716.71
7.2.320.0060.01216.58
7.2.310.0030.01316.74
7.2.300.0070.01016.59
7.2.290.0100.00716.63
7.2.80.0000.01516.64
7.2.00.0060.00619.52
7.1.200.0030.00315.90
7.1.100.0070.00318.18
7.1.70.0050.00517.36
7.1.60.0070.01719.11
7.1.50.0030.01317.11
7.1.00.0030.07722.44
7.0.200.0000.01016.50
7.0.140.0100.06022.15
7.0.100.0230.07719.89
7.0.90.0170.07019.84
7.0.80.0100.07719.86
7.0.70.0070.04719.93
7.0.60.0070.04719.95
7.0.50.0170.06720.32
7.0.40.0100.07320.08
7.0.30.0100.08020.18
7.0.20.0070.08720.14
7.0.10.0100.08020.22
7.0.00.0000.08719.99
5.6.280.0030.07321.15
5.6.250.0070.04720.83
5.6.240.0100.08020.75
5.6.230.0130.07320.51
5.6.220.0100.07720.73
5.6.210.0100.04720.71
5.6.200.0070.08720.98
5.6.190.0070.09020.96
5.6.180.0070.05321.03
5.6.170.0170.05721.11
5.6.160.0100.07321.09
5.6.150.0030.05021.04
5.6.140.0200.06721.07
5.6.130.0130.07021.07
5.6.120.0100.07721.02
5.6.110.0100.07020.91
5.6.100.0130.08021.07
5.6.90.0070.05021.01
5.6.80.0100.07720.38
5.6.70.0070.07320.43
5.6.60.0070.09020.43
5.6.50.0000.05020.37
5.6.40.0270.06720.31
5.6.30.0200.07320.44
5.6.20.0130.04720.30
5.6.10.0000.05320.49
5.6.00.0030.08320.28
5.5.380.0200.04720.38
5.5.370.0130.07320.42
5.5.360.0100.07720.45
5.5.350.0100.08020.46
5.5.340.0100.08020.92
5.5.330.0070.08320.65
5.5.320.0130.07720.90
5.5.310.0200.07020.90
5.5.300.0030.08320.84
5.5.290.0130.07320.90
5.5.280.0130.08320.89
5.5.270.0100.07720.77
5.5.260.0070.08720.93
5.5.250.0070.05020.65
5.5.240.0200.06720.15
5.5.230.0130.07720.16
5.5.220.0100.08020.02
5.5.210.0070.07720.26
5.5.200.0170.07020.11
5.5.190.0070.07720.18
5.5.180.0130.08020.25
5.5.160.0100.08020.08
5.5.150.0100.08320.19
5.5.140.0070.07720.16
5.5.130.0100.07720.11
5.5.120.0100.08020.18
5.5.110.0100.07320.18
5.5.100.0130.07020.09
5.5.90.0100.07320.07
5.5.80.0030.04720.12
5.5.70.0100.04320.16
5.5.60.0130.06720.11
5.5.50.0030.08720.00
5.5.40.0070.08019.94
5.5.30.0030.08720.03
5.5.20.0030.08720.00
5.5.10.0030.08320.01
5.5.00.0130.07020.05
5.4.450.0000.09019.23
5.4.440.0030.05019.37
5.4.430.0070.06319.20
5.4.420.0200.05319.48
5.4.410.0100.08319.32
5.4.400.0130.07319.03
5.4.390.0030.06319.21
5.4.380.0070.07719.13
5.4.370.0000.05019.03
5.4.360.0070.03719.03
5.4.350.0100.07019.25
5.4.340.0100.07019.05
5.4.320.0000.08319.18
5.4.310.0200.06019.04
5.4.300.0130.03718.88
5.4.290.0100.03319.17
5.4.280.0070.07018.98
5.4.270.0030.06719.23
5.4.260.0170.07019.12
5.4.250.0100.07719.16
5.4.240.0030.08018.87
5.4.230.0100.07319.04
5.4.220.0100.07319.04
5.4.210.0130.06719.09
5.4.200.0030.08319.04
5.4.190.0030.07319.15
5.4.180.0030.07719.11
5.4.170.0100.07319.02
5.4.160.0070.07719.12
5.4.150.0070.07319.02
5.4.140.0030.08316.36
5.4.130.0130.06016.18
5.4.120.0070.07316.45
5.4.110.0100.07316.42
5.4.100.0000.06716.43
5.4.90.0070.05316.50
5.4.80.0000.04016.47
5.4.70.0000.04716.42
5.4.60.0030.04316.34
5.4.50.0070.03716.44
5.4.40.0070.03316.44
5.4.30.0070.03316.33
5.4.20.0000.03716.25
5.4.10.0000.04016.47
5.4.00.0030.03715.95
5.3.290.0030.08015.66
5.3.280.0030.04715.66
5.3.270.0130.07015.66
5.3.260.0070.08015.66
5.3.250.0100.05015.66
5.3.240.0070.08015.66
5.3.230.0070.04315.66
5.3.220.0130.05715.66
5.3.210.0030.08315.66
5.3.200.0100.07715.66
5.3.190.0070.04015.66
5.3.180.0070.04315.66
5.3.170.0030.03715.66
5.3.160.0000.04015.66
5.3.150.0030.03715.66
5.3.140.0030.03715.66
5.3.130.0100.03015.66
5.3.120.0030.03715.66
5.3.110.0000.04015.66
5.3.100.0030.03715.66
5.3.90.0070.03715.66
5.3.80.0100.02715.66
5.3.70.0070.03315.66
5.3.60.0000.03715.66
5.3.50.0000.04715.66
5.3.40.0000.04015.66
5.3.30.0070.03315.66
5.3.20.0100.03715.66
5.3.10.0030.03715.66
5.3.00.0030.03715.66
5.2.170.0000.03015.66
5.2.160.0030.02315.66
5.2.150.0000.03315.66
5.2.140.0000.03015.66
5.2.130.0000.04315.66
5.2.120.0000.03015.66
5.2.110.0000.03015.66
5.2.100.0000.03715.66
5.2.90.0030.05015.66
5.2.80.0000.03715.66
5.2.70.0000.03015.66
5.2.60.0000.03315.66
5.2.50.0030.03015.66
5.2.40.0070.02715.66
5.2.30.0000.03315.66
5.2.20.0000.03315.66
5.2.10.0100.01715.66
5.2.00.0000.04015.66
5.1.60.0030.02315.66
5.1.50.0000.02715.66
5.1.40.0070.02015.66
5.1.30.0000.04315.66
5.1.20.0070.03315.66
5.1.10.0000.02715.66
5.1.00.0070.02315.66
5.0.50.0030.03315.66
5.0.40.0000.02015.66
5.0.30.0000.02715.66
5.0.20.0100.01315.66
5.0.10.0030.01715.66
5.0.00.0030.02715.66
4.4.90.0000.01715.66
4.4.80.0030.01315.66
4.4.70.0030.01315.66
4.4.60.0030.01315.66
4.4.50.0030.01315.66
4.4.40.0030.02315.66
4.4.30.0070.01015.66
4.4.20.0000.01715.66
4.4.10.0070.01015.66
4.4.00.0000.02715.66
4.3.110.0000.01715.66
4.3.100.0000.01715.66
4.3.90.0030.02715.66
4.3.80.0000.02715.66
4.3.70.0000.03015.66
4.3.60.0000.02715.66
4.3.50.0030.01715.66
4.3.40.0000.02315.66
4.3.30.0000.01715.66
4.3.20.0030.01315.66
4.3.10.0000.01715.66
4.3.00.0000.01715.66

preferences:
46.99 ms | 400 KiB | 5 Q