3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $bar; } $foo = new Foo; $arr = array( "string(empty) \"\"" => "", "string(space) \" \"" => " ", "bool(false)" => FALSE, "bool(true)" => TRUE, "array(empty) {}" => array(), "NULL" => NULL, "string(\"zero\") \"0\"" => "0", "int(0)" => 0, "float(0.0)" => 0.0, "object(stdClass)# (empty) {}" => new stdClass, "public \$bar" => $foo->bar, "string(null byte) \"\\0\"" => "\0" ); define('PAD', array_map('strlen', array_keys($arr))); $headings = array('type', 'if', 'isset', 'empty', 'is_null'); // foreach($headings as $heading){ echo str_pad($heading, PAD), " | "; } echo "\n"; $x = str_pad("TRUE", PAD) . " | "; $y = str_pad("", PAD) . " | "; foreach($arr as $key => $val){ echo str_pad($key, 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)
8.3.60.0110.00716.63
8.3.50.0080.01322.05
8.3.40.0120.00318.90
8.3.30.0120.00318.84
8.3.20.0050.00220.39
8.3.10.0080.00023.71
8.3.00.0100.00017.50
8.2.180.0090.00618.41
8.2.170.0170.00322.96
8.2.160.0070.00722.27
8.2.150.0060.00324.18
8.2.140.0050.00224.66
8.2.130.0040.00426.16
8.2.120.0060.00317.63
8.2.110.0000.00919.24
8.2.100.0080.00317.97
8.2.90.0040.00419.21
8.2.80.0070.00417.97
8.2.70.0000.00817.63
8.2.60.0040.00418.00
8.2.50.0080.00018.07
8.2.40.0050.00321.18
8.2.30.0040.00420.61
8.2.20.0050.00217.94
8.2.10.0080.00018.01
8.2.00.0000.00718.21
8.1.280.0070.01425.92
8.1.270.0080.00023.87
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0090.00020.93
8.1.230.0000.01117.52
8.1.220.0000.00917.77
8.1.210.0090.00018.77
8.1.200.0060.00317.35
8.1.190.0030.00617.10
8.1.180.0040.00418.10
8.1.170.0040.00418.84
8.1.160.0000.00821.90
8.1.150.0000.00818.89
8.1.140.0040.00417.52
8.1.130.0050.00317.62
8.1.120.0000.00717.47
8.1.110.0030.00317.46
8.1.100.0000.00817.45
8.1.90.0050.00217.53
8.1.80.0040.00417.55
8.1.70.0000.00717.45
8.1.60.0050.00317.65
8.1.50.0030.00517.43
8.1.40.0000.00817.50
8.1.30.0040.00417.51
8.1.20.0000.00817.58
8.1.10.0030.00617.64
8.1.00.0000.00817.57
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.36
8.0.270.0000.00716.94
8.0.260.0070.00017.27
8.0.250.0070.00016.94
8.0.240.0060.00317.01
8.0.230.0030.00316.92
8.0.220.0000.00716.96
8.0.210.0030.00416.97
8.0.200.0000.00817.07
8.0.190.0030.00617.00
8.0.180.0040.00417.04
8.0.170.0080.00016.93
8.0.160.0000.00816.91
8.0.150.0000.00717.00
8.0.140.0040.00416.89
8.0.130.0060.00013.43
8.0.120.0000.00816.99
8.0.110.0000.00716.97
8.0.100.0030.00516.78
8.0.90.0040.00416.94
8.0.80.0090.00616.86
8.0.70.0000.00716.82
8.0.60.0000.00716.89
8.0.50.0040.00417.04
8.0.30.0030.01217.06
8.0.20.0050.01617.40
8.0.10.0040.00416.99
8.0.00.0090.01016.81
7.4.330.0050.00015.08
7.4.320.0000.00616.52
7.4.300.0060.00016.51
7.4.290.0000.00816.47
7.4.280.0000.00916.48
7.4.270.0030.00316.45
7.4.260.0070.00016.61
7.4.250.0040.00416.50
7.4.240.0040.00416.62
7.4.230.0080.00016.73
7.4.220.0110.00816.47
7.4.210.0080.00616.46
7.4.200.0000.00716.54
7.4.160.0090.00616.55
7.4.150.0090.01217.40
7.4.140.0140.00717.86
7.4.130.0120.00616.52
7.4.120.0090.01016.49
7.4.110.0150.00616.54
7.4.100.0160.00516.66
7.4.90.0050.01316.46
7.4.80.0140.00319.39
7.4.70.0140.00716.57
7.4.60.0070.01016.45
7.4.50.0000.00816.34
7.4.40.0060.01016.48
7.4.30.0120.00916.75
7.4.00.0070.01014.88
7.3.330.0000.00513.31
7.3.320.0000.00513.22
7.3.310.0030.00316.36
7.3.300.0030.00316.27
7.3.290.0000.00716.33
7.3.280.0110.00916.38
7.3.270.0070.01417.40
7.3.260.0230.00316.51
7.3.250.0110.00816.44
7.3.240.0080.01216.35
7.3.230.0000.01916.53
7.3.210.0200.00316.46
7.3.200.0180.00016.64
7.3.190.0180.00316.44
7.3.180.0070.01016.52
7.3.170.0110.01216.39
7.3.160.0140.00416.51
7.3.120.0060.01214.81
7.3.110.0070.01015.01
7.3.100.0130.00315.06
7.3.90.0070.00714.55
7.3.80.0030.01214.54
7.3.70.0090.00314.96
7.3.60.0060.00614.93
7.3.50.0070.01114.62
7.3.40.0030.00714.98
7.3.30.0040.00414.70
7.3.20.0060.01216.54
7.3.10.0070.00416.60
7.3.00.0120.00316.86
7.2.330.0150.00916.85
7.2.320.0060.01216.53
7.2.310.0070.01016.67
7.2.300.0110.01116.78
7.2.290.0070.01116.84
7.2.250.0070.01014.72
7.2.240.0060.01315.37
7.2.230.0090.00615.23
7.2.220.0030.01015.27
7.2.210.0060.01315.21
7.2.200.0000.00915.29
7.2.190.0040.00915.05
7.2.180.0080.00415.05
7.2.170.0060.00615.07
7.2.160.0110.00414.92
7.2.150.0070.01016.97
7.2.140.0070.00316.96
7.2.130.0000.01016.86
7.2.120.0000.01517.04
7.2.110.0000.01416.94
7.2.100.0000.01116.94
7.2.90.0100.00717.11
7.2.80.0080.00417.07
7.2.70.0040.00816.90
7.2.60.0050.01017.04
7.2.50.0040.01116.85
7.2.40.0090.00616.66
7.2.30.0030.01317.06
7.2.20.0060.01016.82
7.2.10.0080.01117.07
7.2.00.0050.01018.15
7.1.330.0060.00615.79
7.1.320.0040.00815.79
7.1.310.0160.00315.86
7.1.300.0030.01015.81
7.1.290.0030.01015.96
7.1.280.0100.00015.92
7.1.270.0060.01015.88
7.1.260.0030.00915.65
7.1.250.0090.00015.84
7.1.240.0030.01315.88
7.1.230.0030.00615.72
7.1.220.0000.01215.91
7.1.210.0060.00915.63
7.1.200.0060.00915.73
7.1.190.0060.00615.89
7.1.180.0030.01215.56
7.1.170.0000.01116.01
7.1.160.0000.01315.83
7.1.150.0000.01415.61
7.1.140.0040.00815.71
7.1.130.0100.00715.91
7.1.120.0040.00815.94
7.1.110.0030.00715.95
7.1.100.0050.00717.10
7.1.90.0070.00715.84
7.1.80.0030.00615.80
7.1.70.0030.00716.45
7.1.60.0050.01217.64
7.1.50.0080.00516.26
7.1.40.0100.00315.92
7.1.30.0070.00415.69
7.1.20.0040.00415.93
7.1.10.0040.01115.79
7.1.00.0040.04019.12
7.0.330.0070.00315.57
7.0.320.0070.01015.47
7.0.310.0040.00415.50
7.0.300.0040.01415.51
7.0.290.0070.00715.45
7.0.280.0070.01015.13
7.0.270.0030.00915.41
7.0.260.0000.01315.47
7.0.250.0070.01015.58
7.0.240.0080.00615.44
7.0.230.0040.00415.36
7.0.220.0030.01015.13
7.0.210.0080.00015.45
7.0.200.0190.01015.00
7.0.190.0120.00415.45
7.0.180.0100.00315.46
7.0.170.0040.00815.56
7.0.160.0060.00915.34
7.0.150.0070.00715.36
7.0.140.0030.00915.43
7.0.130.0110.00415.37
7.0.120.0030.01415.52
7.0.110.0100.00615.43
7.0.100.0100.00715.19
7.0.90.0040.00815.57
7.0.80.0060.00915.53
7.0.70.0060.00915.55
7.0.60.0090.03617.66
7.0.50.0050.02416.62
7.0.40.0070.02316.90
7.0.30.0050.03716.72
7.0.20.0160.02916.65
7.0.10.0100.03016.89
7.0.00.0090.04016.84
5.6.400.0030.01214.13
5.6.390.0140.00014.55
5.6.380.0070.01114.04
5.6.370.0040.00814.12
5.6.360.0130.00614.53
5.6.350.0070.00714.62
5.6.340.0040.01414.61
5.6.330.0060.00614.02
5.6.320.0060.00914.68
5.6.310.0040.00714.49
5.6.300.0060.00614.58
5.6.290.0120.00414.51
5.6.280.0050.03217.57
5.6.270.0000.01514.32
5.6.260.0070.01314.13
5.6.250.0070.00314.59
5.6.240.0040.00814.45
5.6.230.0060.00614.33
5.6.220.0100.00314.13
5.6.210.0110.03417.52
5.6.200.0130.03816.30
5.6.190.0030.02717.46
5.6.180.1840.02217.53
5.6.170.0130.04217.36
5.6.160.0120.02317.31
5.6.150.0060.02816.10
5.6.140.0060.04216.30
5.6.130.0050.04716.31
5.6.120.0000.03317.69
5.6.110.0030.03717.77
5.6.100.0100.03717.61
5.6.90.0050.04717.81
5.6.80.0070.03017.45
5.6.70.0030.00714.22
5.6.60.0040.01214.20
5.6.50.0070.00314.12
5.6.40.0060.00914.39
5.6.30.0100.00614.50
5.6.20.0070.00314.53
5.6.10.0000.01814.49
5.6.00.0070.01014.07
5.5.380.0100.00314.09
5.5.370.0070.00314.43
5.5.360.0030.00614.15
5.5.350.0060.04317.32
5.5.340.0080.02316.03
5.5.330.0060.04617.11
5.5.320.0170.03117.32
5.5.310.0170.04417.19
5.5.300.0020.04816.33
5.5.290.0110.04516.16
5.5.280.0110.04417.42
5.5.270.0100.04317.47
5.5.260.0090.04517.51
5.5.250.0070.03917.60
5.5.240.0050.03817.00
5.5.230.0100.00314.11
5.5.220.0070.01013.96
5.5.210.0040.00414.20
5.5.200.0030.00914.36
5.5.190.0070.00714.41
5.5.180.0060.01214.38
5.5.170.0080.00414.33
5.5.160.0000.01414.41
5.5.150.0090.00614.31
5.5.140.0090.00614.40
5.5.130.0040.01514.27
5.5.120.0000.01114.39
5.5.110.0070.00714.48
5.5.100.0080.00814.46
5.5.90.0150.00014.39
5.5.80.0090.00613.96
5.5.70.0110.00714.04
5.5.60.0030.01214.07
5.5.50.0040.00414.11
5.5.40.0030.00914.31
5.5.30.0100.00413.97
5.5.20.0090.00613.96
5.5.10.0080.00413.87
5.5.00.0060.00613.93
5.4.450.0080.03215.82
5.4.440.0140.02715.92
5.4.430.0120.03415.76
5.4.420.0180.03515.87
5.4.410.0150.03515.71
5.4.400.0120.03315.65
5.4.390.0170.02815.48
5.4.380.0030.03115.71
5.4.370.0100.02815.60
5.4.360.0060.03115.65
5.4.350.0350.03315.61
5.4.340.0080.03715.60
5.4.330.0000.00912.16
5.4.320.0110.03515.69
5.4.310.0330.02815.53
5.4.300.0420.03315.48
5.4.290.0330.04515.58
5.4.280.0200.02815.57
5.4.270.0150.03015.71
5.4.260.0150.03615.71
5.4.250.0020.03615.61
5.4.240.0080.03115.69
5.4.230.0210.02315.68
5.4.220.0200.03315.52
5.4.210.0150.03015.48
5.4.200.0230.02515.48
5.4.190.0130.02915.71
5.4.180.0120.02915.71
5.4.170.0180.03215.71
5.4.160.0130.02815.59
5.4.150.0110.03315.70
5.4.140.0170.02514.31
5.4.130.0050.03414.32
5.4.120.0100.02614.32
5.4.110.0080.03214.37
5.4.100.0250.03014.22
5.4.90.0280.02614.28
5.4.80.0280.03514.31
5.4.70.0110.02714.37
5.4.60.0150.02514.33
5.4.50.0110.02714.31
5.4.40.0130.02314.38
5.4.30.0100.02514.33
5.4.20.0100.02314.26
5.4.10.0070.02814.27
5.4.00.0200.02613.95

preferences:
54.4 ms | 401 KiB | 5 Q