3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $bar; } $foo = new Foo; $arr = array("", " ", FALSE, TRUE, array(), NULL, "0", 0, 0.0, new stdClass, $foo, $foo->bar, "\0"); define('PAD', 20); $headings = array('type', 'if', 'isset', 'empty', 'is_null'); // foreach($headings as $heading){ echo str_pad($heading, PAD), " | "; } echo "\n"; $x = str_pad("TRUE", PAD) . " | "; $y = str_pad("", PAD) . " | "; foreach($arr as $val){ $a = debug_zval_dump($val); var_dump($a); /* echo str_pad(print($val), PAD), " | "; echo $val ? $x : $y; echo isset($val) ? $x : $y; echo empty($val) ? $x : $y; echo is_null($val) ? $x : $y; */ echo "\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)
8.3.60.0080.00816.50
8.3.50.0150.00722.05
8.3.40.0070.00718.66
8.3.30.0090.00618.46
8.3.20.0080.00020.20
8.3.10.0000.00723.56
8.3.00.0040.00717.49
8.2.180.0110.00718.54
8.2.170.0060.01022.96
8.2.160.0110.00719.36
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0050.00317.63
8.2.110.0090.00322.13
8.2.100.0040.00717.93
8.2.90.0040.00419.41
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0080.00018.04
8.2.50.0070.00318.07
8.2.40.0000.00719.39
8.2.30.0070.00020.68
8.2.20.0040.00417.75
8.2.10.0040.00418.11
8.2.00.0050.00318.22
8.1.280.0090.00625.92
8.1.270.0000.00823.96
8.1.260.0030.00526.35
8.1.250.0000.00728.09
8.1.240.0040.00422.54
8.1.230.0060.00617.66
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.22
8.1.190.0040.00417.10
8.1.180.0000.00818.10
8.1.170.0000.00718.84
8.1.160.0000.00721.97
8.1.150.0050.00218.79
8.1.140.0030.00519.54
8.1.130.0030.00317.37
8.1.120.0000.00717.43
8.1.110.0000.00717.44
8.1.100.0050.00317.45
8.1.90.0070.00017.48
8.1.80.0040.00417.46
8.1.70.0000.00717.46
8.1.60.0080.00017.57
8.1.50.0040.00417.43
8.1.40.0080.00017.54
8.1.30.0000.00817.68
8.1.20.0040.00417.50
8.1.10.0040.00417.54
8.1.00.0040.00417.57
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0000.00718.53
8.0.270.0030.00317.26
8.0.260.0030.00316.84
8.0.250.0000.00816.87
8.0.240.0050.00316.88
8.0.230.0040.00416.79
8.0.220.0000.00716.98
8.0.210.0080.00016.90
8.0.200.0030.00316.85
8.0.190.0030.00517.02
8.0.180.0040.00416.89
8.0.170.0000.00716.86
8.0.160.0030.00416.93
8.0.150.0000.00716.86
8.0.140.0040.00416.85
8.0.130.0000.00613.35
8.0.120.0040.00416.69
8.0.110.0070.00016.85
8.0.100.0040.00416.86
8.0.90.0000.00716.94
8.0.80.0100.00616.85
8.0.70.0040.00416.77
8.0.60.0000.00716.93
8.0.50.0080.00016.73
8.0.30.0040.01617.14
8.0.20.0080.01017.40
8.0.10.0050.00317.04
8.0.00.0090.01216.67
7.4.330.0020.00215.08
7.4.320.0000.00616.61
7.4.300.0030.00316.57
7.4.290.0030.00316.50
7.4.280.0080.00016.41
7.4.270.0030.00316.40
7.4.260.0000.00716.60
7.4.250.0000.00716.54
7.4.240.0030.00316.57
7.4.230.0030.00316.61
7.4.220.0090.00916.71
7.4.210.0090.00616.53
7.4.200.0030.00316.44
7.4.160.0170.00016.43
7.4.150.0160.00317.40
7.4.140.0170.00517.86
7.4.130.0060.01116.55
7.4.120.0100.00916.60
7.4.110.0090.00916.61
7.4.100.0060.01216.29
7.4.90.0090.00916.39
7.4.80.0090.00919.39
7.4.70.0070.01516.33
7.4.60.0060.00916.45
7.4.50.0000.00816.61
7.4.40.0090.00616.51
7.4.30.0160.00316.70
7.4.00.0060.00914.84
7.3.330.0000.00513.09
7.3.320.0000.00613.24
7.3.310.0040.00416.30
7.3.300.0000.00716.18
7.3.290.0000.00716.11
7.3.280.0090.00716.31
7.3.270.0160.00317.40
7.3.260.0110.00716.64
7.3.250.0070.01116.32
7.3.240.0120.00616.23
7.3.230.0090.00916.39
7.3.210.0030.01516.33
7.3.200.0120.00616.36
7.3.190.0120.00916.37
7.3.180.0110.00516.35
7.3.170.0060.01116.59
7.3.160.0070.01016.35
7.2.330.0100.01316.79
7.2.320.0080.00816.77
7.2.310.0090.00916.50
7.2.300.0110.00716.79
7.2.290.0070.01016.83
7.2.60.0070.01016.73
7.2.00.0040.00719.59
7.1.200.0080.00415.80
7.1.100.0040.00818.17
7.1.70.0040.00417.01
7.1.60.0030.02119.43
7.1.50.0000.01416.96
7.1.00.0130.06722.44
7.0.200.0450.00414.60
7.0.60.0030.04319.98
7.0.50.0070.08018.01
7.0.40.0000.04720.09
7.0.30.0300.04320.26
7.0.20.0370.04720.24
7.0.10.0100.03720.12
7.0.00.0070.06720.07
5.6.280.0070.05720.92
5.6.210.0100.05720.53
5.6.200.0000.04318.16
5.6.190.0030.04320.50
5.6.180.3100.04320.51
5.6.170.0230.04720.71
5.6.160.0070.07320.47
5.6.150.0130.04718.19
5.6.140.0000.04318.17
5.6.130.0100.07718.19
5.6.120.0030.04021.10
5.6.110.0030.04720.95
5.6.100.0100.07020.96
5.6.90.0000.06021.12
5.6.80.0070.05720.28
5.5.350.0030.03320.43
5.5.340.0070.05018.03
5.5.330.0070.08720.56
5.5.320.0300.08320.25
5.5.310.0170.04320.13
5.5.300.0070.04318.03
5.5.290.0100.08318.02
5.5.280.0030.05020.90
5.5.270.0170.07320.79
5.5.260.0100.07320.65
5.5.250.0130.07720.76
5.5.240.0130.06320.35
5.4.450.0170.06319.48
5.4.440.0130.06319.58
5.4.430.0130.05319.45
5.4.420.0100.05719.38
5.4.410.0430.06019.25
5.4.400.0530.06019.29
5.4.390.0570.05719.26
5.4.380.0870.05019.13
5.4.370.0630.05319.25
5.4.360.0630.05719.30
5.4.350.0330.04018.87
5.4.340.0230.05719.17
5.4.320.0070.06719.28
5.4.310.0600.05319.28
5.4.300.0500.06319.25
5.4.290.0430.05019.06
5.4.280.0330.06318.97
5.4.270.0230.06319.37
5.4.260.0500.07319.27
5.4.250.0300.05019.14
5.4.240.0400.06318.84
5.4.230.0130.05719.05
5.4.220.0130.07719.28
5.4.210.0370.06018.87
5.4.200.0400.04719.21
5.4.190.0130.07719.21
5.4.180.0400.05718.97
5.4.170.0270.07319.25
5.4.160.0200.07319.04
5.4.150.0100.05719.23
5.4.140.0200.04716.48
5.4.130.0100.05316.38
5.4.120.0030.06016.53
5.4.110.0100.05716.62
5.4.100.0430.04716.25
5.4.90.0770.03716.70
5.4.80.0300.05316.50
5.4.70.0230.04316.17
5.4.60.0030.05716.55
5.4.50.0130.05716.16
5.4.40.0300.04716.59
5.4.30.0100.06016.22
5.4.20.0130.05016.49
5.4.10.0070.06716.50
5.4.00.0470.05315.82

preferences:
54.38 ms | 401 KiB | 5 Q