3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gdr_encode($val) { $bin = ''; while ($val > 0) { $bin .= chr($val & 0xFF); $val >>= 8; } return str_replace(array('/', '='), array('_', ''), base64_encode($bin)); } function gdr_decode($str) { $bin = base64_decode(str_replace('_', '/', $str)); $val = 0; for ($i=strlen($bin)-1; $i>=0; $i--) { $val |= ord($bin[$i]) << $i*8; } return $val; } if (!function_exists('json_encode')) { die('json_encode missing'); } $vals = array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000, 4294967295, 4294967296); foreach ($vals as $val) { $enc = json_encode(gdr_encode($val)); $dec = json_encode(gdr_decode($enc)); $val = json_encode($val); if (strlen($enc) > strlen($val)) { echo "$enc $val FAIL\n"; } else { echo "$enc $val\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)
8.3.60.0110.01118.56
8.3.50.0100.01322.94
8.3.40.0120.00318.84
8.3.30.0140.00019.04
8.3.20.0040.00419.94
8.3.10.0070.00021.94
8.3.00.0080.00017.63
8.2.180.0110.00416.37
8.2.170.0070.00722.96
8.2.160.0120.00320.57
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0150.00426.16
8.2.120.0000.00820.92
8.2.110.0030.00720.52
8.2.100.0040.00817.85
8.2.90.0040.00418.16
8.2.80.0000.00817.97
8.2.70.0040.00417.73
8.2.60.0040.00417.93
8.2.50.0030.00618.07
8.2.40.0000.00718.22
8.2.30.0080.00018.10
8.2.20.0040.00417.71
8.2.10.0040.00418.15
8.2.00.0000.00717.78
8.1.280.0090.00625.92
8.1.270.0030.00623.84
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0040.00422.19
8.1.230.0060.00620.84
8.1.220.0040.00417.79
8.1.210.0000.00818.82
8.1.200.0070.00317.36
8.1.190.0000.00817.25
8.1.180.0080.00018.10
8.1.170.0050.00318.56
8.1.160.0030.00522.05
8.1.150.0040.00419.02
8.1.140.0040.00417.48
8.1.130.0040.00417.86
8.1.120.0070.00017.53
8.1.110.0040.00417.48
8.1.100.0070.00017.48
8.1.90.0030.00517.53
8.1.80.0030.00417.38
8.1.70.0030.00717.50
8.1.60.0040.00417.50
8.1.50.0000.00917.60
8.1.40.0040.00417.55
8.1.30.0040.00417.68
8.1.20.0030.00517.74
8.1.10.0000.00817.61
8.1.00.0000.00817.55
8.0.300.0030.00320.25
8.0.290.0000.00716.75
8.0.280.0000.00818.49
8.0.270.0030.00717.16
8.0.260.0000.00717.23
8.0.250.0070.00016.98
8.0.240.0000.00716.90
8.0.230.0030.00316.97
8.0.220.0000.00716.95
8.0.210.0040.00416.97
8.0.200.0030.00317.03
8.0.190.0030.00516.93
8.0.180.0000.00716.82
8.0.170.0000.00716.92
8.0.160.0000.00717.01
8.0.150.0040.00316.89
8.0.140.0030.00516.79
8.0.130.0030.00313.36
8.0.120.0040.00416.92
8.0.110.0070.00016.91
8.0.100.0040.00416.70
8.0.90.0040.00416.79
8.0.80.0150.00916.95
8.0.70.0000.00716.78
8.0.60.0040.00416.91
8.0.50.0080.00017.00
8.0.30.0100.01017.10
8.0.20.0120.00617.40
8.0.10.0000.00716.94
8.0.00.0120.00616.75
7.4.330.0000.00515.08
7.4.320.0040.00416.61
7.4.300.0030.00316.56
7.4.290.0020.00516.44
7.4.280.0000.00716.54
7.4.270.0000.00716.55
7.4.260.0070.00416.51
7.4.250.0040.00416.49
7.4.240.0060.00216.52
7.4.230.0000.00716.54
7.4.220.0060.01216.65
7.4.210.0110.00816.52
7.4.200.0000.00716.38
7.4.160.0060.00916.52
7.4.150.0070.01617.40
7.4.140.0040.01417.86
7.4.130.0110.01016.62
7.4.120.0100.00716.59
7.4.110.0200.00416.46
7.4.100.0110.00816.73
7.4.90.0120.00616.54
7.4.80.0050.01219.39
7.4.70.0110.00816.61
7.4.60.0090.00916.59
7.4.50.0020.00216.56
7.4.40.0100.01016.53
7.4.30.0000.01516.54
7.4.00.0070.00715.01
7.3.330.0030.00313.42
7.3.320.0030.00313.47
7.3.310.0030.00316.25
7.3.300.0070.00016.39
7.3.290.0030.01016.39
7.3.280.0040.01316.40
7.3.270.0140.00417.40
7.3.260.0070.01016.38
7.3.250.0100.00716.43
7.3.240.0110.01116.44
7.3.230.0110.00716.44
7.3.210.0000.02016.39
7.3.200.0090.00919.39
7.3.190.0040.01416.52
7.3.180.0030.01316.38
7.3.170.0000.01516.45
7.3.160.0120.00816.53
7.2.330.0170.00316.88
7.2.320.0100.00616.86
7.2.310.0070.01016.80
7.2.300.0040.01116.96
7.2.290.0090.00616.62
7.2.00.0110.00419.55
7.1.100.0000.01618.32
7.1.70.0040.01216.93
7.1.60.0140.01119.40
7.1.50.0100.01417.14
7.1.00.0070.07322.30
7.0.200.0000.00716.80
7.0.140.0030.07322.07
7.0.90.0130.04719.91
7.0.80.0100.06719.94
7.0.70.0070.07319.81
7.0.60.0100.07720.04
7.0.50.0030.05720.41
7.0.40.0030.07020.13
7.0.30.0100.08020.04
7.0.20.0070.04320.10
7.0.10.0200.04020.10
7.0.00.0170.07319.94
5.6.280.0100.06721.00
5.6.240.0030.08720.71
5.6.230.0070.06720.50
5.6.220.0170.06720.63
5.6.210.0100.04720.56
5.6.200.0070.06721.05
5.6.190.0070.05721.11
5.6.180.0070.06021.14
5.6.170.0100.05721.02
5.6.160.0030.05721.09
5.6.150.0000.08721.02
5.6.140.0070.08021.09
5.6.130.0000.05721.02
5.6.120.0000.09321.06
5.6.110.0070.05720.95
5.6.100.0100.07320.95
5.6.90.0070.08020.99
5.6.80.0000.08320.48
5.6.70.0070.07020.31
5.6.60.0100.06020.38
5.6.50.0170.07320.43
5.6.40.0030.05320.41
5.6.30.0000.05020.50
5.6.20.0070.08020.52
5.6.10.0130.05320.44
5.6.00.0070.06320.44
5.5.380.0030.08020.45
5.5.370.0000.05320.46
5.5.360.0070.04720.30
5.5.350.0070.04720.38
5.5.340.0170.05720.65
5.5.330.0070.08320.89
5.5.320.0030.05020.65
5.5.310.0130.04720.91
5.5.300.0070.08720.91
5.5.290.0070.08720.93
5.5.280.0100.04720.93
5.5.270.0100.09020.78
5.5.260.0030.05320.64
5.5.250.0030.09020.46
5.5.240.0130.07020.25
5.5.230.0130.07720.30
5.5.220.0030.07020.18
5.5.210.0130.07720.14
5.5.200.0070.07720.14
5.5.190.0100.07720.27
5.5.180.0130.07720.12
5.5.160.0030.07020.28
5.5.150.0100.07320.00
5.5.140.0070.07320.26
5.5.130.0100.06720.22
5.5.120.0100.07720.28
5.5.110.0000.06020.08
5.5.100.0170.06720.18
5.5.90.0000.05320.07
5.5.80.0070.04320.09
5.5.70.0170.07719.95
5.5.60.0100.07320.07
5.5.50.0000.05720.01
5.5.40.0130.08020.10
5.5.30.0130.06020.06
5.5.20.0030.07720.10
5.5.10.0100.04319.96
5.5.00.0030.07319.96
5.4.450.0070.08319.18
5.4.440.0070.04719.52
5.4.430.0130.06719.28
5.4.420.0100.07319.36
5.4.410.0070.07719.34
5.4.400.0130.07019.13
5.4.390.0030.07019.03
5.4.380.0100.07319.18
5.4.370.0000.07018.95
5.4.360.0030.08019.18
5.4.350.0200.06019.18
5.4.340.0130.06018.91
5.4.320.0030.04319.16
5.4.310.0000.05019.04
5.4.300.0030.07018.95
5.4.290.0070.05019.20
5.4.280.0100.07318.85
5.4.270.0030.05319.04
5.4.260.0070.04319.01
5.4.250.0100.07319.23
5.4.240.0030.07718.89
5.4.230.0000.08718.84
5.4.220.0070.04319.02
5.4.210.0170.06719.04
5.4.200.0100.05719.02
5.4.190.0130.03018.84
5.4.180.0070.07319.02
5.4.170.0070.04719.11
5.4.160.0000.05019.10
5.4.150.0100.04319.11
5.4.140.0000.06716.35
5.4.130.0000.07316.42
5.4.120.0000.07716.21
5.4.110.0030.07716.34
5.4.100.0000.07316.45
5.4.90.0070.07316.50
5.4.80.0030.08016.53
5.4.70.0070.07016.38
5.4.60.0030.03716.32
5.4.50.0030.06716.41
5.4.40.0030.04016.53
5.4.30.0030.07016.36
5.4.20.0030.04716.33
5.4.10.0100.06316.46
5.4.00.0030.05315.64
5.3.290.0070.07314.59
5.3.280.0070.07714.53
5.3.270.0030.07714.68
5.3.260.0100.07714.72
5.3.250.0130.06714.75
5.3.240.0030.05714.67
5.3.230.0130.06714.75
5.3.220.0130.06014.58
5.3.210.0000.05014.59
5.3.200.0000.08014.61
5.3.190.0070.05014.64
5.3.180.0030.08014.56
5.3.170.0000.05314.63
5.3.160.0070.06014.54
5.3.150.0030.08014.54
5.3.140.0100.06314.68
5.3.130.0100.05714.58
5.3.120.0170.07014.52
5.3.110.0000.05714.48
5.3.100.0070.06314.09
5.3.90.0070.04014.12
5.3.80.0000.04713.93
5.3.70.0070.04014.06
5.3.60.0100.08314.10
5.3.50.0030.05013.88
5.3.40.0070.04014.06
5.3.30.0070.04013.99
5.3.20.0000.04313.73
5.3.10.0030.06713.74
5.3.00.0170.05713.55
5.2.170.0070.06011.05
5.2.160.0030.06311.22
5.2.150.0030.03711.22
5.2.140.0000.05311.21
5.2.130.0030.06311.14
5.2.120.0100.03011.17
5.2.110.0000.05011.00
5.2.100.0070.05311.02
5.2.90.0030.06310.98
5.2.80.0030.06011.25
5.2.70.0030.05011.10
5.2.60.0100.05711.13
5.2.50.0100.06010.89
5.2.40.0000.05011.10
5.2.30.0000.05311.08
5.2.20.0070.03710.98
5.2.10.0130.03710.83
5.2.00.0030.05710.75
5.1.60.0030.05310.54
5.1.50.0070.05010.54
5.1.40.0030.03310.54
5.1.30.0030.03010.54
5.1.20.0000.03310.54
5.1.10.0030.02310.54
5.1.00.0000.03010.54
5.0.50.0030.01710.54
5.0.40.0030.01710.54
5.0.30.0000.03010.54
5.0.20.0000.02310.54
5.0.10.0030.01710.54
5.0.00.0030.02710.54
4.4.90.0070.03310.54
4.4.80.0000.03710.54
4.4.70.0030.02010.54
4.4.60.0100.03010.54
4.4.50.0000.03710.54
4.4.40.0070.04710.54
4.4.30.0000.03310.54
4.4.20.0030.01310.54
4.4.10.0000.01710.54
4.4.00.0000.02710.54
4.3.110.0030.01310.54
4.3.100.0000.01710.54
4.3.90.0030.01310.54
4.3.80.0000.02310.54
4.3.70.0000.01710.54
4.3.60.0000.01310.54
4.3.50.0030.01310.54
4.3.40.0000.02310.54
4.3.30.0000.01710.54
4.3.20.0030.01310.54
4.3.10.0000.01710.54
4.3.00.0030.01310.54

preferences:
34.54 ms | 401 KiB | 5 Q