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'); } // FAIL $vals = array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000, 4294967295, 4294967296); foreach ($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 $val WORSE\n"; } else if (strlen($enc) == strlen($val)) { echo "$enc $val EQUAL\n"; } else { echo "$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)
8.3.40.0070.00718.79
8.3.30.0030.01019.00
8.3.20.0030.00520.34
8.3.10.0000.00721.96
8.3.00.0060.00317.50
8.2.170.0110.00322.96
8.2.160.0100.00320.48
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0100.00326.16
8.2.120.0090.00021.00
8.2.110.0090.00022.21
8.2.100.0120.00017.91
8.2.90.0080.00019.23
8.2.80.0060.00317.97
8.2.70.0030.00617.59
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0050.00318.28
8.2.30.0000.00818.16
8.2.20.0000.00917.63
8.2.10.0060.00318.04
8.2.00.0030.00517.73
8.1.270.0040.00423.96
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00321.97
8.1.230.0000.01119.15
8.1.220.0000.00817.74
8.1.210.0090.00018.77
8.1.200.0040.00417.23
8.1.190.0050.00317.11
8.1.180.0000.00818.10
8.1.170.0000.00918.61
8.1.160.0000.00721.94
8.1.150.0000.00718.89
8.1.140.0030.00517.47
8.1.130.0000.00717.75
8.1.120.0000.00717.48
8.1.110.0050.00317.30
8.1.100.0000.00717.35
8.1.90.0040.00417.48
8.1.80.0000.00717.47
8.1.70.0030.00617.46
8.1.60.0040.00417.44
8.1.50.0050.00317.45
8.1.40.0030.00617.43
8.1.30.0040.00417.65
8.1.20.0040.00417.68
8.1.10.0000.00817.57
8.1.00.0070.00017.48
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.45
8.0.270.0080.00017.24
8.0.260.0000.00917.28
8.0.250.0000.00817.01
8.0.240.0000.00716.87
8.0.230.0080.00016.95
8.0.220.0000.00716.80
8.0.210.0050.00316.77
8.0.200.0000.00616.98
8.0.190.0040.00417.01
8.0.180.0050.00316.84
8.0.170.0000.00716.89
8.0.160.0030.00316.98
8.0.150.0040.00416.95
8.0.140.0040.00416.88
8.0.130.0000.00613.33
8.0.120.0020.00516.77
8.0.110.0000.00816.79
8.0.100.0040.00416.75
8.0.90.0000.00716.74
8.0.80.0070.01116.85
8.0.70.0040.00416.71
8.0.60.0000.00716.96
8.0.50.0000.00716.90
8.0.30.0120.00816.94
8.0.20.0110.00817.44
8.0.10.0000.00817.05
8.0.00.0070.01416.77
7.4.330.0050.00015.09
7.4.320.0070.00016.44
7.4.300.0030.00316.52
7.4.290.0030.00616.53
7.4.280.0080.00016.56
7.4.270.0040.00416.54
7.4.260.0030.00516.45
7.4.250.0040.00416.49
7.4.240.0020.00516.62
7.4.230.0000.00716.43
7.4.220.0030.01616.72
7.4.210.0070.00716.68
7.4.200.0000.00716.60
7.4.160.0090.01216.56
7.4.150.0140.00717.40
7.4.140.0070.01217.86
7.4.130.0060.01116.58
7.4.120.0090.00816.51
7.4.110.0140.01016.60
7.4.100.0120.00916.61
7.4.90.0130.00416.35
7.4.80.0080.01519.39
7.4.70.0050.01116.57
7.4.60.0100.00616.41
7.4.50.0030.00616.39
7.4.40.0070.01016.51
7.4.30.0070.01416.57
7.4.00.0000.01115.05
7.3.330.0060.00013.33
7.3.320.0030.00313.24
7.3.310.0030.00316.27
7.3.300.0000.00716.38
7.3.290.0000.01616.36
7.3.280.0110.00716.33
7.3.270.0100.00717.40
7.3.260.0140.00616.35
7.3.250.0110.00716.43
7.3.240.0130.00716.64
7.3.230.0070.01116.39
7.3.210.0100.01316.30
7.3.200.0090.00819.39
7.3.190.0140.00316.42
7.3.180.0060.00916.31
7.3.170.0000.01816.63
7.3.160.0150.00916.55
7.2.330.0070.01116.67
7.2.320.0000.01716.57
7.2.310.0060.01216.71
7.2.300.0040.01216.55
7.2.290.0060.01016.52
7.2.80.0070.00716.42
7.2.60.0060.01016.67
7.2.00.0000.01119.07
7.1.200.0090.00315.78
7.1.100.0000.01017.96
7.1.70.0050.00316.92
7.1.60.0070.01719.40
7.1.50.0070.01616.96
7.1.00.0000.08022.40
7.0.200.0000.00716.88
7.0.140.0000.08022.17
7.0.90.0430.04019.82
7.0.80.0500.06719.88
7.0.70.0400.04319.87
7.0.60.0130.04319.85
7.0.50.0130.04720.36
7.0.40.0000.04320.07
7.0.30.0100.03320.10
7.0.20.0030.03720.02
7.0.10.0070.04020.04
7.0.00.0000.07320.10
5.6.280.0130.06320.82
5.6.240.0130.07720.56
5.6.230.0000.04720.64
5.6.220.0070.04020.64
5.6.210.0070.03720.62
5.6.200.0100.04021.06
5.6.190.0070.04021.12
5.6.180.0070.05021.02
5.6.170.0070.06021.12
5.6.160.0030.07021.09
5.6.150.0030.04320.97
5.6.140.0000.05020.91
5.6.130.0070.04321.09
5.6.120.0000.04321.09
5.6.110.0070.03321.02
5.6.100.0070.04021.03
5.6.90.0030.04720.94
5.6.80.0100.08320.46
5.6.70.0030.06320.52
5.6.60.0170.07320.41
5.6.50.0130.08020.43
5.6.40.0070.05020.47
5.6.30.0100.08020.45
5.6.20.0030.04320.37
5.6.10.0130.03320.30
5.6.00.0100.04320.39
5.5.380.0170.06020.48
5.5.370.0030.08720.39
5.5.360.0030.04320.36
5.5.350.0030.04020.41
5.5.340.0070.03720.91
5.5.330.0000.04320.88
5.5.320.0030.04020.86
5.5.310.0070.03720.81
5.5.300.0070.03320.88
5.5.290.0070.04320.90
5.5.280.0130.07720.88
5.5.270.0000.04320.91
5.5.260.0070.04320.91
5.5.250.0070.07720.60
5.5.240.0030.05720.20
5.5.230.0030.05320.13
5.5.220.0100.05020.27
5.5.210.0100.06720.20
5.5.200.0000.07020.29
5.5.190.0200.03720.20
5.5.180.0070.05320.28
5.5.160.0070.07020.27
5.5.150.0000.08020.22
5.5.140.0100.06320.16
5.5.130.0170.05020.18
5.5.120.0100.07720.13
5.5.110.0100.08020.27
5.5.100.0030.08020.07
5.5.90.0030.08320.12
5.5.80.0170.06719.95
5.5.70.0130.05320.13
5.5.60.0070.04019.97
5.5.50.0130.07720.04
5.5.40.0100.04720.16
5.5.30.0030.05720.04
5.5.20.0070.05319.96
5.5.10.0100.08020.03
5.5.00.0070.08020.02
5.4.450.0030.04019.49
5.4.440.0000.05019.38
5.4.430.0030.05319.52
5.4.420.0030.04019.36
5.4.410.0100.05019.33
5.4.400.0100.06019.13
5.4.390.0030.04318.90
5.4.380.0100.05318.85
5.4.370.0000.04319.10
5.4.360.0070.07019.04
5.4.350.0230.05019.09
5.4.340.0030.05718.97
5.4.320.0070.08319.14
5.4.310.0030.04719.04
5.4.300.0030.04718.85
5.4.290.0000.08719.20
5.4.280.0130.04019.13
5.4.270.0100.04719.04
5.4.260.0070.07719.21
5.4.250.0100.07319.15
5.4.240.0130.05019.12
5.4.230.0130.05719.17
5.4.220.0130.07019.04
5.4.210.0000.04318.94
5.4.200.0100.07319.02
5.4.190.0100.07719.13
5.4.180.0130.07019.04
5.4.170.0270.04719.02
5.4.160.0070.08018.86
5.4.150.0070.07319.02
5.4.140.0070.04316.39
5.4.130.0100.07016.34
5.4.120.0170.03316.25
5.4.110.0100.05016.55
5.4.100.0170.04316.47
5.4.90.0070.04316.55
5.4.80.0030.05016.56
5.4.70.0070.06316.50
5.4.60.0070.07316.25
5.4.50.0070.07016.50
5.4.40.0170.06716.52
5.4.30.0070.04716.45
5.4.20.0030.06716.40
5.4.10.0030.04316.39
5.4.00.0070.07315.73
5.3.290.0030.08014.66
5.3.280.0030.04714.54
5.3.270.0100.05714.66
5.3.260.0100.07014.73
5.3.250.0000.04714.57
5.3.240.0170.05714.63
5.3.230.0030.07714.72
5.3.220.0070.07714.68
5.3.210.0000.08314.64
5.3.200.0070.04714.53
5.3.190.0030.04714.62
5.3.180.0100.04014.51
5.3.170.0130.06714.59
5.3.160.0070.05714.63
5.3.150.0170.03314.61
5.3.140.0130.06314.63
5.3.130.0070.03714.55
5.3.120.0070.07714.63
5.3.110.0070.06314.55
5.3.100.0070.07314.16
5.3.90.0070.04014.10
5.3.80.0100.07013.94
5.3.70.0070.05014.02
5.3.60.0130.04014.07
5.3.50.0070.04714.02
5.3.40.0070.06714.08
5.3.30.0130.07014.02
5.3.20.0130.06713.74
5.3.10.0030.07013.73
5.3.00.0070.07013.63
5.2.170.0100.05011.21
5.2.160.0070.06311.22
5.2.150.0030.04011.25
5.2.140.0070.04311.08
5.2.130.0130.05711.04
5.2.120.0130.03311.17
5.2.110.0000.06711.13
5.2.100.0070.06011.18
5.2.90.0030.04010.98
5.2.80.0000.06011.02
5.2.70.0100.05711.03
5.2.60.0070.05311.08
5.2.50.0000.07011.05
5.2.40.0030.04710.94
5.2.30.0030.06011.02
5.2.20.0030.06310.83
5.2.10.0030.04710.86
5.2.00.0130.05010.79
5.1.60.0100.05010.00
5.1.50.0070.03010.11
5.1.40.0070.0339.83
5.1.30.0130.04710.42
5.1.20.0030.05310.49
5.1.10.0100.0479.93
5.1.00.0030.06010.18
5.0.50.0070.0378.58
5.0.40.0100.0208.43
5.0.30.0030.0478.28
5.0.20.0070.0338.23
5.0.10.0030.0408.30
5.0.00.0000.0478.07
4.4.90.0070.0176.86
4.4.80.0070.0306.86
4.4.70.0030.0376.86
4.4.60.0000.0376.86
4.4.50.0000.0336.86
4.4.40.0030.0576.86
4.4.30.0030.0276.86
4.4.20.0100.0276.86
4.4.10.0070.0336.86
4.4.00.0000.0536.86
4.3.110.0030.0276.86
4.3.100.0030.0336.86
4.3.90.0000.0306.86
4.3.80.0000.0536.86
4.3.70.0000.0206.86
4.3.60.0070.0306.86
4.3.50.0030.0306.86
4.3.40.0000.0476.86
4.3.30.0030.0276.86
4.3.20.0030.0306.86
4.3.10.0000.0206.86
4.3.00.0000.0336.86

preferences:
42.56 ms | 400 KiB | 5 Q