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 $val){ echo str_pad(print_r($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)
8.3.60.0110.00716.74
8.3.50.0090.00921.92
8.3.40.0060.01218.59
8.3.30.0120.00318.77
8.3.20.0080.00019.99
8.3.10.0000.00723.48
8.3.00.0080.00417.38
8.2.180.0120.00318.31
8.2.170.0040.01122.96
8.2.160.0110.00422.25
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00417.63
8.2.110.0070.00422.29
8.2.100.0080.00317.93
8.2.90.0080.00019.14
8.2.80.0040.00417.97
8.2.70.0030.00617.50
8.2.60.0040.00417.93
8.2.50.0000.00918.07
8.2.40.0040.00419.32
8.2.30.0040.00420.62
8.2.20.0040.00417.57
8.2.10.0020.00518.18
8.2.00.0000.00718.17
8.1.280.0090.00625.92
8.1.270.0000.00923.88
8.1.260.0000.00926.35
8.1.250.0000.00728.09
8.1.240.0090.00022.67
8.1.230.0120.00017.42
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0030.00717.35
8.1.190.0040.00417.13
8.1.180.0040.00418.10
8.1.170.0050.00318.96
8.1.160.0040.00422.02
8.1.150.0050.00218.96
8.1.140.0000.00919.46
8.1.130.0030.00317.76
8.1.120.0000.00717.47
8.1.110.0030.00517.37
8.1.100.0040.00417.37
8.1.90.0000.00817.50
8.1.80.0000.00817.42
8.1.70.0000.00717.52
8.1.60.0000.00717.50
8.1.50.0040.00417.53
8.1.40.0000.00817.41
8.1.30.0000.00817.57
8.1.20.0060.00317.55
8.1.10.0040.00417.54
8.1.00.0040.00417.41
8.0.300.0070.00018.77
8.0.290.0000.00716.63
8.0.280.0030.00318.48
8.0.270.0000.00717.27
8.0.260.0030.00317.17
8.0.250.0000.00816.92
8.0.240.0030.00517.00
8.0.230.0040.00416.99
8.0.220.0000.00716.91
8.0.210.0000.00816.87
8.0.200.0030.00316.83
8.0.190.0030.00516.92
8.0.180.0070.00016.81
8.0.170.0000.00816.92
8.0.160.0040.00416.91
8.0.150.0050.00216.81
8.0.140.0040.00416.92
8.0.130.0030.00313.32
8.0.120.0080.00016.78
8.0.110.0040.00416.84
8.0.100.0000.00816.76
8.0.90.0050.00316.77
8.0.80.0040.01116.94
8.0.70.0050.00216.96
8.0.60.0000.00716.86
8.0.50.0050.00216.89
8.0.30.0110.00917.04
8.0.20.0150.00517.40
8.0.10.0050.00316.91
8.0.00.0070.01116.75
7.4.330.0060.00015.08
7.4.320.0030.00316.59
7.4.300.0030.00316.52
7.4.290.0030.00316.52
7.4.280.0030.00516.61
7.4.270.0020.00516.43
7.4.260.0100.00016.63
7.4.250.0050.00216.57
7.4.240.0030.00516.57
7.4.230.0070.00016.54
7.4.220.0130.00616.63
7.4.210.0080.00716.56
7.4.200.0080.00016.34
7.4.160.0060.01216.50
7.4.150.0060.01217.40
7.4.140.0090.01117.86
7.4.130.0070.01216.45
7.4.120.0120.00916.55
7.4.110.0110.00716.40
7.4.100.0090.00916.53
7.4.90.0150.00316.39
7.4.80.0130.00319.39
7.4.70.0030.01316.47
7.4.60.0130.00316.41
7.4.50.0080.00016.32
7.4.40.0080.00816.50
7.4.30.0100.00716.42
7.4.00.0070.01115.14
7.3.330.0000.00513.31
7.3.320.0050.00013.27
7.3.310.0080.00016.29
7.3.300.0070.00016.32
7.3.290.0000.00716.36
7.3.280.0110.00816.31
7.3.270.0040.01517.40
7.3.260.0040.01516.57
7.3.240.0090.01216.41
7.3.230.0120.00616.39
7.3.210.0040.01416.54
7.3.200.0140.00316.54
7.3.190.0070.01316.40
7.3.180.0070.01016.59
7.3.170.0100.00616.39
7.3.160.0080.00816.57
7.2.330.0100.00716.75
7.2.320.0160.00916.58
7.2.310.0190.00316.56
7.2.300.0160.00316.81
7.2.290.0070.01016.82
7.2.60.0060.00817.15
7.2.00.0060.00619.30
7.1.200.0030.00915.86
7.1.100.0070.00418.36
7.1.70.0040.00416.93
7.1.60.0140.01119.43
7.1.50.0130.00716.89
7.1.00.0000.08022.44
7.0.200.0270.00714.59
7.0.60.0130.07319.94
7.0.50.0030.05017.97
7.0.40.0100.05720.05
7.0.30.0300.08720.08
7.0.20.0130.05020.26
7.0.10.0070.04020.33
7.0.00.0070.04320.08
5.6.280.0030.07321.09
5.6.210.0130.07320.49
5.6.200.0100.04318.17
5.6.190.0030.04320.63
5.6.180.3430.04320.64
5.6.170.0330.07020.50
5.6.160.0030.06020.46
5.6.150.0030.04318.16
5.6.140.0030.04018.15
5.6.130.0030.05018.21
5.6.120.0030.05721.00
5.6.110.0070.04020.94
5.6.100.0130.05720.99
5.6.90.0000.05020.99
5.6.80.0070.06020.41
5.5.350.0000.08020.39
5.5.340.0030.05718.06
5.5.330.0030.07720.19
5.5.320.0270.04320.51
5.5.310.0230.03720.27
5.5.300.0070.05017.99
5.5.290.0030.06718.08
5.5.280.0000.07720.89
5.5.270.0000.05320.98
5.5.260.0130.07320.66
5.5.250.0030.07020.60
5.5.240.0070.06320.20
5.4.450.0400.06719.15
5.4.440.0500.06019.66
5.4.430.0300.05019.66
5.4.420.0200.06319.54
5.4.410.0400.03719.33
5.4.400.0200.05319.17
5.4.390.0700.05019.21
5.4.380.0630.04319.04
5.4.370.0570.05019.28
5.4.360.0400.04719.07
5.4.350.0230.04318.82
5.4.340.0500.04719.34
5.4.320.0230.04719.34
5.4.310.0130.04719.04
5.4.300.0230.07019.09
5.4.290.0200.05719.34
5.4.280.0100.06018.91
5.4.270.0230.05719.13
5.4.260.0200.04719.25
5.4.250.0370.05719.36
5.4.240.0170.06719.06
5.4.230.0200.05318.76
5.4.220.0430.06319.03
5.4.210.0730.05018.98
5.4.200.0170.06019.03
5.4.190.0330.05018.89
5.4.180.0230.06319.03
5.4.170.0100.06719.24
5.4.160.0070.06719.01
5.4.150.0470.05019.23
5.4.140.0430.06016.54
5.4.130.0600.04316.34
5.4.120.0170.04716.41
5.4.110.0700.05716.60
5.4.100.0370.04716.46
5.4.90.0070.06016.45
5.4.80.0470.04716.50
5.4.70.0100.05016.27
5.4.60.0170.05316.18
5.4.50.0130.05716.45
5.4.40.0170.04316.26
5.4.30.0100.05316.54
5.4.20.0200.04016.49
5.4.10.0200.04716.62
5.4.00.0630.03716.01

preferences:
51.16 ms | 401 KiB | 5 Q