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 $val){ var_export($val); /* 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)
8.3.70.0070.00718.43
8.3.60.0190.00316.48
8.3.50.0060.01222.05
8.3.40.0090.00618.80
8.3.30.0060.00918.61
8.3.20.0040.00420.36
8.3.10.0000.00823.52
8.3.00.0070.00417.50
8.2.180.0040.01118.29
8.2.170.0030.01022.96
8.2.160.0070.00722.15
8.2.150.0080.00024.18
8.2.140.0000.00724.66
8.2.130.0040.00426.16
8.2.120.0090.00017.63
8.2.110.0130.01022.15
8.2.100.0070.00418.04
8.2.90.0040.00419.21
8.2.80.0030.00617.97
8.2.70.0000.00917.63
8.2.60.0040.00417.93
8.2.50.0080.00018.07
8.2.40.0040.00419.34
8.2.30.0000.00720.64
8.2.20.0000.00817.69
8.2.10.0040.00418.15
8.2.00.0030.00618.00
8.1.280.0030.01025.92
8.1.270.0090.00023.89
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00323.84
8.1.230.0110.00017.64
8.1.220.0000.00817.76
8.1.210.0090.00018.77
8.1.200.0100.00017.22
8.1.190.0040.00417.22
8.1.180.0080.00018.10
8.1.170.0040.00418.95
8.1.160.0000.00722.01
8.1.150.0000.00718.96
8.1.140.0060.00319.65
8.1.130.0030.00317.70
8.1.120.0040.00417.37
8.1.110.0060.00317.50
8.1.100.0000.00817.49
8.1.90.0040.00417.39
8.1.80.0030.00517.40
8.1.70.0000.00817.36
8.1.60.0000.00717.47
8.1.50.0060.00317.46
8.1.40.0030.00617.53
8.1.30.0000.00817.66
8.1.20.0030.00517.61
8.1.10.0000.00717.57
8.1.00.0080.00017.48
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0040.00418.45
8.0.270.0000.00717.22
8.0.260.0000.00617.14
8.0.250.0030.00316.92
8.0.240.0000.00717.04
8.0.230.0070.00016.92
8.0.220.0000.00716.92
8.0.210.0050.00316.78
8.0.200.0030.00317.00
8.0.190.0000.00816.92
8.0.180.0000.00716.94
8.0.170.0030.00616.83
8.0.160.0030.00416.92
8.0.150.0040.00416.85
8.0.140.0040.00416.87
8.0.130.0040.00413.40
8.0.120.0050.00316.76
8.0.110.0000.00716.93
8.0.100.0070.00016.93
8.0.90.0040.00416.78
8.0.80.0040.01216.89
8.0.70.0000.00816.76
8.0.60.0000.00716.80
8.0.50.0000.00716.71
8.0.30.0150.00517.21
8.0.20.0040.01417.40
8.0.10.0040.00416.83
8.0.00.0100.01016.79
7.4.330.0000.00515.08
7.4.320.0000.00616.52
7.4.300.0030.00316.54
7.4.290.0070.00016.52
7.4.280.0040.00416.61
7.4.270.0030.00416.54
7.4.260.0100.00016.60
7.4.250.0000.00716.41
7.4.240.0050.00216.57
7.4.230.0070.00016.48
7.4.220.0100.01016.71
7.4.210.0070.00716.59
7.4.200.0030.00316.39
7.4.160.0080.00816.57
7.4.150.0140.00317.40
7.4.140.0100.01317.86
7.4.130.0100.00916.49
7.4.120.0150.00316.39
7.4.110.0100.01016.51
7.4.100.0090.00916.53
7.4.90.0070.01016.53
7.4.80.0130.01019.39
7.4.70.0110.00616.58
7.4.60.0040.01216.40
7.4.50.0000.00816.54
7.4.40.0120.00616.43
7.4.30.0190.00316.33
7.4.00.0060.00914.86
7.3.330.0000.00613.30
7.3.320.0020.00213.37
7.3.310.0070.00016.27
7.3.300.0030.00316.29
7.3.290.0070.00016.41
7.3.280.0120.00616.31
7.3.270.0000.01617.40
7.3.260.0060.01116.46
7.3.250.0130.00516.38
7.3.240.0090.01016.40
7.3.230.0060.01716.40
7.3.210.0140.00416.32
7.3.200.0160.00616.56
7.3.190.0110.00616.64
7.3.180.0060.00916.39
7.3.170.0100.01116.38
7.3.160.0110.00616.67
7.2.330.0060.01216.77
7.2.320.0070.01016.88
7.2.310.0160.00716.58
7.2.300.0110.01116.79
7.2.290.0130.00416.55
7.2.60.0030.01216.91
7.2.00.0030.00919.46
7.1.200.0000.01515.83
7.1.100.0030.00918.21
7.1.70.0030.00617.28
7.1.60.0090.01219.43
7.1.50.0040.00717.00
7.1.00.0130.06722.44
7.0.200.0210.00314.87
7.0.60.0030.06020.02
7.0.50.0030.08317.87
7.0.40.0070.07020.10
7.0.30.0370.04720.18
7.0.20.0170.05020.06
7.0.10.0070.04020.07
7.0.00.0200.06320.19
5.6.280.0030.05020.79
5.6.210.0070.07020.72
5.6.200.0030.04018.12
5.6.190.0100.04020.50
5.6.180.3030.04020.63
5.6.170.0200.05320.56
5.6.160.0100.04320.50
5.6.150.0070.08318.28
5.6.140.0000.04018.14
5.6.130.0030.05718.24
5.6.120.0100.04720.99
5.6.110.0030.04020.89
5.6.100.0100.08021.09
5.6.90.0070.04020.90
5.6.80.0070.07720.39
5.5.350.0100.07020.43
5.5.340.0200.04718.04
5.5.330.0100.05020.27
5.5.320.0370.07020.27
5.5.310.0230.03720.32
5.5.300.0000.08318.02
5.5.290.0070.08717.98
5.5.280.0130.07720.89
5.5.270.0100.06320.76
5.5.260.0070.08020.80
5.5.250.0100.05020.80
5.5.240.0000.08020.20
5.4.450.0230.07719.54
5.4.440.0400.07019.49
5.4.430.0630.07019.39
5.4.420.0370.05019.39
5.4.410.0130.08019.44
5.4.400.0230.06319.23
5.4.390.0430.05319.08
5.4.380.0300.07719.23
5.4.370.0100.08019.04
5.4.360.0300.06718.93
5.4.350.0270.06719.23
5.4.340.0270.06719.05
5.4.320.0100.06019.13
5.4.310.0270.04319.08
5.4.300.0130.06019.24
5.4.290.0000.07018.77
5.4.280.0170.06719.09
5.4.270.0170.05319.21
5.4.260.0170.05718.91
5.4.250.0070.06019.23
5.4.240.0200.05718.91
5.4.230.0300.05019.02
5.4.220.0170.05718.82
5.4.210.0130.06319.24
5.4.200.0200.06018.90
5.4.190.0230.06018.97
5.4.180.0100.06019.23
5.4.170.0200.06718.98
5.4.160.0470.06718.80
5.4.150.0100.07719.04
5.4.140.0200.06316.70
5.4.130.0170.06016.39
5.4.120.0200.07316.52
5.4.110.0230.06316.60
5.4.100.0130.05016.27
5.4.90.0030.07716.43
5.4.80.0270.06716.27
5.4.70.0100.05316.61
5.4.60.0500.05716.26
5.4.50.0230.04716.49
5.4.40.0230.04016.57
5.4.30.0370.05016.59
5.4.20.0330.06716.22
5.4.10.0530.05316.38
5.4.00.0100.05315.80

preferences:
51.05 ms | 401 KiB | 5 Q