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 $val){ echo str_pad(gettype($val) . "(" . $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)
8.3.70.0120.00418.30
8.3.60.0130.00616.63
8.3.50.0090.01121.99
8.3.40.0040.01518.97
8.3.30.0140.00018.89
8.3.20.0080.00020.35
8.3.10.0000.00823.61
8.3.00.0080.00319.38
8.2.190.0040.01516.63
8.2.180.0170.00316.75
8.2.170.0080.00822.96
8.2.160.0100.01022.12
8.2.150.0100.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0000.00917.63
8.2.110.0070.00419.37
8.2.100.0060.00617.72
8.2.90.0080.00019.17
8.2.80.0030.00517.97
8.2.70.0100.00017.63
8.2.60.0080.00017.93
8.2.50.0030.00618.07
8.2.40.0040.00419.28
8.2.30.0040.00420.77
8.2.20.0040.00417.70
8.2.10.0040.00418.04
8.2.00.0030.00518.05
8.1.280.0000.01525.92
8.1.270.0060.00323.88
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00621.25
8.1.230.0090.00317.46
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0090.00017.35
8.1.180.0000.00918.10
8.1.170.0050.00319.06
8.1.160.0080.00022.07
8.1.150.0070.00018.80
8.1.140.0000.00919.59
8.1.130.0000.00717.59
8.1.120.0040.00417.37
8.1.110.0050.00217.34
8.1.100.0000.00817.49
8.1.90.0050.00317.45
8.1.80.0040.00517.43
8.1.70.0000.00817.41
8.1.60.0040.00417.57
8.1.50.0000.00817.53
8.1.40.0000.00817.52
8.1.30.0000.00817.64
8.1.20.0000.00817.65
8.1.10.0040.00417.56
8.1.00.0000.00917.45
8.0.300.0000.00718.77
8.0.290.0000.00716.88
8.0.280.0000.00718.45
8.0.270.0070.00017.25
8.0.260.0030.00317.20
8.0.250.0080.00016.91
8.0.240.0000.00717.04
8.0.230.0000.00816.89
8.0.220.0070.00316.94
8.0.210.0090.00016.98
8.0.200.0000.00816.91
8.0.190.0030.00617.02
8.0.180.0030.00616.88
8.0.170.0000.00816.94
8.0.160.0040.00417.03
8.0.150.0040.00416.90
8.0.140.0050.00216.96
8.0.130.0060.00013.44
8.0.120.0040.00416.86
8.0.110.0050.00316.86
8.0.100.0030.00316.82
8.0.90.0050.00216.96
8.0.80.0060.00917.01
8.0.70.0070.00016.95
8.0.60.0000.00716.75
8.0.50.0070.00017.07
8.0.30.0160.00817.05
8.0.20.0110.01017.40
8.0.10.0050.00316.92
8.0.00.0090.00916.74
7.4.330.0000.00515.08
7.4.320.0000.00616.60
7.4.300.0050.00316.50
7.4.290.0070.00016.46
7.4.280.0050.00316.63
7.4.270.0000.00816.53
7.4.260.0000.00816.55
7.4.250.0040.00416.55
7.4.240.0020.00516.58
7.4.230.0070.00016.71
7.4.220.0030.01616.64
7.4.210.0010.01416.61
7.4.200.0070.00016.35
7.4.160.0180.00416.59
7.4.150.0090.00917.40
7.4.140.0110.00817.86
7.4.130.0110.00716.59
7.4.120.0090.01216.51
7.4.110.0130.00616.73
7.4.100.0110.00716.59
7.4.90.0110.00716.56
7.4.80.0060.01219.39
7.4.70.0100.00616.52
7.4.60.0110.00516.39
7.4.50.0030.00516.45
7.4.40.0150.00616.37
7.4.30.0110.00716.58
7.4.00.0060.00614.78
7.3.330.0000.00513.33
7.3.320.0030.00313.30
7.3.310.0030.00316.36
7.3.300.0030.00316.41
7.3.290.0070.00016.39
7.3.280.0070.01216.37
7.3.270.0110.00917.40
7.3.260.0140.00516.51
7.3.240.0080.01216.65
7.3.230.0080.00816.56
7.3.210.0130.00416.59
7.3.200.0080.00816.43
7.3.190.0110.00816.42
7.3.180.0060.01016.45
7.3.170.0090.01216.63
7.3.160.0110.00716.80
7.3.10.0000.01416.60
7.3.00.0000.01016.43
7.2.330.0070.01016.83
7.2.320.0110.00616.51
7.2.310.0070.01816.90
7.2.300.0130.00916.58
7.2.290.0130.00616.43
7.2.130.0070.00317.12
7.2.120.0030.00516.70
7.2.110.0000.01516.61
7.2.100.0070.00717.10
7.2.90.0060.00917.06
7.2.80.0000.00916.70
7.2.70.0000.01117.16
7.2.60.0090.00916.86
7.2.50.0040.00717.02
7.2.40.0030.00716.92
7.2.30.0030.01116.80
7.2.20.0030.00717.00
7.2.10.0030.00716.93
7.2.00.0030.01218.23
7.1.250.0030.00715.77
7.1.200.0060.00615.62
7.1.100.0000.01318.11
7.1.70.0000.00817.18
7.1.60.0090.01519.43
7.1.50.0000.01917.08
7.1.00.0130.06722.33
7.0.200.0200.01014.93
7.0.60.0070.05319.96
7.0.50.0030.05317.74
7.0.40.0100.08320.05
7.0.30.0300.04020.16
7.0.20.0300.07020.22
7.0.10.0170.08020.30
7.0.00.0030.09320.23
5.6.280.0030.06020.88
5.6.210.0170.07720.55
5.6.200.0070.07318.20
5.6.190.0070.09020.33
5.6.180.3500.04320.48
5.6.170.0270.07320.46
5.6.160.0070.05320.71
5.6.150.0130.04718.25
5.6.140.0100.07318.17
5.6.130.0030.04718.18
5.6.120.0030.08721.11
5.6.110.0030.08720.86
5.6.100.0070.08721.03
5.6.90.0030.05021.11
5.6.80.0070.06320.39
5.5.350.0030.07720.38
5.5.340.0000.07318.10
5.5.330.0030.07720.43
5.5.320.0230.06720.34
5.5.310.0270.08020.41
5.5.300.0070.03717.97
5.5.290.0030.08717.98
5.5.280.0130.08020.88
5.5.270.0100.03720.81
5.5.260.0070.05720.69
5.5.250.0130.07720.79
5.5.240.0100.07020.05
5.4.450.0630.06319.19
5.4.440.0500.06019.46
5.4.430.0130.05719.55
5.4.420.0170.05319.38
5.4.410.0430.03719.18
5.4.400.0200.05319.18
5.4.390.0170.06019.15
5.4.380.0130.05319.13
5.4.370.0230.05319.14
5.4.360.0030.07719.02
5.4.350.0170.06318.98
5.4.340.0100.06019.26
5.4.320.0300.06019.28
5.4.310.0200.05319.27
5.4.300.0230.05719.00
5.4.290.0170.05319.24
5.4.280.0130.05719.15
5.4.270.0270.06319.28
5.4.260.0130.06719.28
5.4.250.0370.06319.15
5.4.240.0100.06319.12
5.4.230.0400.05319.00
5.4.220.0370.06019.14
5.4.210.0300.05019.21
5.4.200.0200.05318.86
5.4.190.0200.06319.37
5.4.180.0300.05319.24
5.4.170.0200.05719.11
5.4.160.0530.06018.99
5.4.150.0170.06319.28
5.4.140.0430.05316.46
5.4.130.0270.04316.43
5.4.120.0270.04316.48
5.4.110.0130.05716.63
5.4.100.0230.04716.63
5.4.90.0230.07016.59
5.4.80.0170.05716.44
5.4.70.0270.05716.60
5.4.60.0270.05016.60
5.4.50.0330.04716.41
5.4.40.0270.05316.50
5.4.30.0200.06316.57
5.4.20.0470.04316.59
5.4.10.0270.06716.23
5.4.00.0230.05315.79

preferences:
57.3 ms | 401 KiB | 5 Q