3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gdr_encode($val) { $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!='; $base = strlen($chars); $str = ''; while ($val > 0) { $str .= $chars[$val % $base]; $val = (int)($val / $base); } return $str; } function gdr_decode($str) { $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!='; $base = strlen($chars); $map = array(); for ($i=0; $i<$base; $i++) { $map[$chars[$i]] = $base; } $val = 0; for ($i=0; i<strlen($str); $i++) { $val *= $base; $val += (int)$map[$str[$i]]; } return $val; } $vals = array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000, 4294967295, 4294967296); foreach ($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)
8.3.60.0150.00316.63
8.3.50.0160.00622.89
8.3.40.0110.00318.76
8.3.30.0110.00319.03
8.3.20.0040.00420.21
8.3.10.0040.00421.74
8.3.00.0050.00317.59
8.2.180.0130.00916.75
8.2.170.0150.00422.96
8.2.160.0110.00420.17
8.2.150.0090.00024.18
8.2.140.0080.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00421.09
8.2.110.0000.01020.98
8.2.100.0110.00017.91
8.2.90.0040.00418.02
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0060.00318.05
8.2.50.0030.00518.07
8.2.40.0060.00318.22
8.2.30.0000.00718.07
8.2.20.0050.00217.85
8.2.10.0020.00518.17
8.2.00.0040.00417.72
8.1.280.0130.01025.92
8.1.270.0060.00623.99
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0000.01321.98
8.1.230.0110.00020.84
8.1.220.0050.00317.79
8.1.210.0040.00418.96
8.1.200.0040.00717.35
8.1.190.0000.00817.38
8.1.180.0000.00718.10
8.1.170.0030.00518.57
8.1.160.0000.00722.11
8.1.150.0070.00018.91
8.1.140.0040.00417.40
8.1.130.0070.00017.78
8.1.120.0070.00017.49
8.1.110.0040.00417.49
8.1.100.0080.00017.55
8.1.90.0040.00417.45
8.1.80.0040.00417.42
8.1.70.0050.00517.37
8.1.60.0060.00317.68
8.1.50.0050.00317.61
8.1.40.0080.00017.55
8.1.30.0060.00317.68
8.1.20.0040.00417.65
8.1.10.0030.00617.56
8.1.00.0040.00417.54
8.0.300.0000.00819.97
8.0.290.0040.00416.75
8.0.280.0050.00318.42
8.0.270.0000.00817.29
8.0.260.0050.00317.18
8.0.250.0040.00416.93
8.0.240.0070.00017.05
8.0.230.0030.00317.00
8.0.220.0000.00716.91
8.0.210.0000.00716.86
8.0.200.0080.00017.03
8.0.190.0030.00516.92
8.0.180.0040.00417.01
8.0.170.0040.00416.92
8.0.160.0000.00717.05
8.0.150.0050.00316.93
8.0.140.0040.00416.96
8.0.130.0000.00613.51
8.0.120.0000.00716.93
8.0.110.0000.00716.91
8.0.100.0080.00016.86
8.0.90.0040.00416.92
8.0.80.0060.01516.93
8.0.70.0000.00716.93
8.0.60.0080.00016.90
8.0.50.0040.00417.09
8.0.30.0080.01317.01
8.0.20.0140.00417.40
8.0.10.0000.00716.94
8.0.00.0060.01216.88
7.4.330.0030.00315.13
7.4.320.0000.00816.33
7.4.300.0040.00416.27
7.4.290.0080.00016.39
7.4.280.0050.00316.50
7.4.270.0000.00716.40
7.4.260.0060.00316.33
7.4.250.0040.00416.30
7.4.240.0040.00416.47
7.4.230.0000.00816.59
7.4.220.0120.00916.40
7.4.210.0030.01716.32
7.4.200.0030.00316.23
7.4.160.0260.01316.43
7.4.150.0450.01117.40
7.4.140.0130.01017.86
7.4.130.0170.01116.48
7.4.120.0220.00316.31
7.4.110.0770.02616.55
7.4.100.0130.00616.33
7.4.90.0850.02416.41
7.4.80.0090.01619.39
7.4.70.0150.00716.36
7.4.60.0290.00916.46
7.4.50.0030.00616.59
7.4.40.0660.02116.37
7.4.30.0270.00916.25
7.4.00.0030.01214.79
7.3.330.0000.00613.43
7.3.320.0030.00313.43
7.3.310.0040.00416.41
7.3.300.0030.00316.18
7.3.290.0060.01516.29
7.3.280.0080.01416.34
7.3.270.0120.00917.40
7.3.260.0400.01216.59
7.3.250.0270.01116.47
7.3.240.0140.01116.46
7.3.230.0190.02716.50
7.3.210.1040.00016.43
7.3.200.1160.03619.39
7.3.190.0150.01516.51
7.3.180.0270.01116.54
7.3.170.0360.00716.27
7.3.160.0150.02416.48
7.2.330.0090.00916.50
7.2.320.0740.01816.66
7.2.310.0110.01516.48
7.2.300.0760.01716.36
7.2.290.0400.01216.84
7.2.60.0060.00616.95
7.2.00.0030.00919.64
7.1.200.0060.00915.77
7.1.70.0000.00817.17
7.1.60.0000.01017.11
7.1.50.0030.00916.90
7.1.00.0070.07322.45
7.0.200.0000.01717.03
7.0.140.0030.07322.08
7.0.90.0100.07720.11
7.0.80.0100.07719.87
7.0.70.0130.07719.97
7.0.60.0470.08019.91
7.0.50.0600.08020.42
7.0.40.0170.07720.00
7.0.30.0130.08020.04
7.0.20.0170.07320.10
7.0.10.0070.05020.13
7.0.00.0000.06020.09
5.6.280.0030.07720.93
5.6.240.0070.08320.66
5.6.230.0100.08320.56
5.6.220.0100.04720.64
5.6.210.0000.09020.57
5.6.200.0030.05320.98
5.6.190.0000.05721.15
5.6.180.0030.08321.11
5.6.170.0070.07721.05
5.6.160.0030.04321.02
5.6.150.0170.07021.01
5.6.140.0130.05721.03
5.6.130.0070.04320.95
5.6.120.0030.03721.04
5.6.110.0000.04020.98
5.6.100.0070.03321.09
5.6.90.0000.04721.11
5.6.80.0030.03720.45
5.6.70.0000.04320.45
5.6.60.0030.05720.33
5.6.50.0070.08020.52
5.6.40.0200.03720.31
5.6.30.0100.06720.55
5.6.20.0100.06020.45
5.6.10.0000.08320.50
5.6.00.0070.07720.39
5.5.380.0070.03320.36
5.5.370.0030.05320.39
5.5.360.0030.07720.28
5.5.350.0030.08320.31
5.5.340.0100.08020.88
5.5.330.0000.06020.91
5.5.320.0030.06020.93
5.5.310.0070.07320.94
5.5.300.0030.04720.95
5.5.290.0030.04320.89
5.5.280.0070.06320.91
5.5.270.0030.05020.87
5.5.260.0030.04720.79
5.5.250.0000.04320.71
5.5.240.0030.04720.28
5.5.230.0070.05020.30
5.5.220.0070.07720.31
5.5.210.0170.03020.30
5.5.200.0170.06720.15
5.5.190.0100.04320.30
5.5.180.0100.08020.13
5.5.160.0100.07320.10
5.5.150.0070.07320.29
5.5.140.0070.05020.25
5.5.130.0170.04020.25
5.5.120.0070.07320.18
5.5.110.0130.04320.23
5.5.100.0070.07720.07
5.5.90.0070.08320.10
5.5.80.0000.06020.05
5.5.70.0030.06020.08
5.5.60.0170.05720.07
5.5.50.0070.04720.08
5.5.40.0100.07720.02
5.5.30.0100.04720.07
5.5.20.0070.07020.04
5.5.10.0230.06320.07
5.5.00.0100.05320.15
5.4.450.0030.04719.31
5.4.440.0030.03719.49
5.4.430.0000.05019.33
5.4.420.0000.05019.18
5.4.410.0030.04019.12
5.4.400.0070.03719.02
5.4.390.0070.07718.85
5.4.380.0030.03718.82
5.4.370.0100.07719.13
5.4.360.0100.05318.95
5.4.350.0030.06319.16
5.4.340.0230.06318.97
5.4.320.0030.07319.07
5.4.310.0100.04318.80
5.4.300.0070.08019.00
5.4.290.0130.06719.05
5.4.280.0100.07718.84
5.4.270.0030.07318.99
5.4.260.0070.04719.00
5.4.250.0070.05018.94
5.4.240.0100.07319.00
5.4.230.0070.08318.89
5.4.220.0100.07318.90
5.4.210.0000.08319.04
5.4.200.0070.04319.15
5.4.190.0000.04318.96
5.4.180.0130.06719.17
5.4.170.0030.08019.13
5.4.160.0130.07318.83
5.4.150.0270.05719.05
5.4.140.0070.05016.33
5.4.130.0130.04016.28
5.4.120.0100.05016.29
5.4.110.0070.04716.28
5.4.100.0070.04316.46
5.4.90.0030.08016.50
5.4.80.0100.07016.33
5.4.70.0070.07716.29
5.4.60.0030.04716.30
5.4.50.0170.06316.39
5.4.40.0130.06716.46
5.4.30.0100.06316.27
5.4.20.0100.07016.46
5.4.10.0030.08016.23
5.4.00.0100.05015.89

preferences:
42.2 ms | 401 KiB | 5 Q