3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $bar; } $foo = new Foo; $blanks = 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" ); $headings = array('type', 'if', 'isset', 'empty', 'is_null'); foreach(array($headings, array_keys($blanks)) as $ord => $arr){ foreach($arr as $val){ static $max = 0; if(strlen($val) > $max){ $max = strlen($val); } } ${"pad_$ord"} = $max; } foreach($headings as $i => $heading){ echo str_pad($heading, $i == 0 ? $pad_1 : $pad_0), " | "; } $true = str_pad("TRUE", $pad_1) . " | "; $false = str_pad("", $pad_1) . " | "; foreach($blanks as $readable => $blank){ echo str_pad($readable, $pad_1), " | "; echo $blank ? $true : $false; echo isset($blank) ? $true : $false; echo empty($blank) ? $true : $false; echo is_null($blank) ? $true : $false; 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)
8.3.70.0090.00918.29
8.3.60.0070.01116.50
8.3.50.0090.01222.11
8.3.40.0130.00618.71
8.3.30.0150.00018.67
8.3.20.0050.00322.04
8.3.10.0050.00323.62
8.3.00.0040.00717.50
8.2.190.0180.00416.58
8.2.180.0140.00416.62
8.2.170.0090.00922.96
8.2.160.0150.00622.08
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0000.00917.50
8.2.110.0070.00322.20
8.2.100.0040.00818.03
8.2.90.0080.00019.17
8.2.80.0040.00417.97
8.2.70.0080.00017.50
8.2.60.0040.00418.05
8.2.50.0030.00618.07
8.2.40.0050.00219.44
8.2.30.0070.00020.68
8.2.20.0050.00317.77
8.2.10.0030.00518.14
8.2.00.0000.00718.12
8.1.280.0070.01025.92
8.1.270.0090.00023.90
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0090.00022.65
8.1.230.0090.00317.66
8.1.220.0080.00017.91
8.1.210.0040.00418.77
8.1.200.0000.01017.35
8.1.190.0040.00417.23
8.1.180.0000.00818.10
8.1.170.0050.00318.88
8.1.160.0000.00722.00
8.1.150.0000.00818.91
8.1.140.0050.00319.56
8.1.130.0000.00717.72
8.1.120.0000.00717.41
8.1.110.0000.00717.36
8.1.100.0040.00417.39
8.1.90.0040.00417.41
8.1.80.0030.00517.46
8.1.70.0030.00317.50
8.1.60.0000.00817.64
8.1.50.0000.00817.46
8.1.40.0000.01017.43
8.1.30.0120.00017.65
8.1.20.0030.00517.71
8.1.10.0030.00617.57
8.1.00.0060.00317.42
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0030.00518.47
8.0.270.0050.00517.13
8.0.260.0000.00717.29
8.0.250.0000.00816.98
8.0.240.0040.00416.86
8.0.230.0080.00016.96
8.0.220.0000.00716.88
8.0.210.0000.00816.82
8.0.200.0080.00017.01
8.0.190.0030.00516.92
8.0.180.0070.00016.96
8.0.170.0040.00416.82
8.0.160.0040.00416.94
8.0.150.0000.00816.83
8.0.140.0040.00416.70
8.0.130.0030.00313.37
8.0.120.0030.00616.91
8.0.110.0080.00016.96
8.0.100.0000.00816.91
8.0.90.0030.00517.03
8.0.80.0100.00716.97
8.0.70.0040.00416.78
8.0.60.0030.00616.73
8.0.50.0040.00416.78
8.0.30.0070.01317.18
8.0.20.0090.01217.42
8.0.10.0000.00817.07
8.0.00.0100.00816.84
7.4.330.0000.00515.08
7.4.320.0000.00616.61
7.4.300.0050.00516.47
7.4.290.0040.00416.63
7.4.280.0000.00816.61
7.4.270.0020.00516.51
7.4.260.0070.00016.50
7.4.250.0000.00816.50
7.4.240.0000.00716.53
7.4.230.0000.00716.57
7.4.220.0090.00916.55
7.4.210.0110.00816.63
7.4.200.0040.00416.41
7.4.160.0110.00816.43
7.4.150.0090.00917.40
7.4.140.0170.01217.86
7.4.130.0080.01116.37
7.4.120.0100.01116.46
7.4.110.0030.01416.60
7.4.100.0130.01316.38
7.4.90.0120.00616.50
7.4.80.0140.00319.39
7.4.70.0130.00516.51
7.4.60.0100.00616.53
7.4.50.0040.00416.40
7.4.40.0060.01216.58
7.4.30.0100.00716.24
7.4.00.0090.00714.92
7.3.330.0030.00313.25
7.3.320.0020.00213.39
7.3.310.0000.00716.39
7.3.300.0000.00716.41
7.3.290.0040.00416.40
7.3.280.0080.01316.39
7.3.270.0110.00817.40
7.3.260.0180.00016.74
7.3.250.0120.00616.40
7.3.240.0120.00916.46
7.3.230.0100.00916.47
7.3.210.0070.01016.55
7.3.200.0100.00716.62
7.3.190.0110.00616.63
7.3.180.0060.01716.41
7.3.170.0120.00516.50
7.3.160.0100.00616.64
7.3.120.0060.01314.65
7.3.110.0030.01614.93
7.3.100.0110.00715.07
7.3.90.0030.01415.00
7.3.80.0030.01014.77
7.3.70.0140.00315.00
7.3.60.0090.00615.03
7.3.50.0030.01414.56
7.3.40.0120.00314.71
7.3.30.0060.01014.76
7.3.20.0000.01616.64
7.3.10.0080.01016.53
7.3.00.0100.00916.73
7.2.330.0110.00816.52
7.2.320.0060.01316.65
7.2.310.0140.00316.82
7.2.300.0100.00716.52
7.2.290.0060.01516.61
7.2.250.0090.00615.14
7.2.240.0040.01215.04
7.2.230.0030.00915.02
7.2.220.0030.00915.37
7.2.210.0040.01515.22
7.2.200.0040.00815.20
7.2.190.0060.01214.82
7.2.180.0070.00714.86
7.2.170.0020.01115.08
7.2.130.0120.01216.79
7.2.120.0130.00716.90
7.2.110.0040.01216.89
7.2.100.0060.01116.91
7.2.90.0100.01616.96
7.2.80.0030.01116.82
7.2.70.0070.01017.00
7.2.60.0070.00816.91
7.2.50.0170.00316.72
7.2.40.0120.00616.77
7.2.30.0100.00717.11
7.2.20.0140.00316.96
7.2.10.0100.00617.15
7.2.00.0080.00818.21
7.1.330.0090.00915.77
7.1.320.0000.01115.79
7.1.310.0070.00715.97
7.1.300.0040.01215.88
7.1.290.0030.00615.81
7.1.280.0060.00916.00
7.1.270.0000.01215.85
7.1.260.0100.00615.45
7.1.250.0100.01015.52
7.1.200.0090.00316.00
7.1.100.0060.00918.32
7.1.70.0030.00817.24
7.1.60.0130.01319.43
7.1.50.0040.00716.86
7.1.00.0030.07722.57
7.0.200.0800.00414.88
7.0.60.0070.08020.02
7.0.50.0100.07317.89
7.0.40.0030.08720.02
7.0.30.0270.08320.24
7.0.20.0270.03320.21
7.0.10.0030.08720.24
7.0.00.0070.08320.32
5.6.280.0070.03320.94
5.6.210.0100.07020.67
5.6.200.0070.08018.16
5.6.190.0100.04020.57
5.6.180.3870.04720.47
5.6.170.0300.08020.45
5.6.160.0030.07320.54
5.6.150.0030.05018.30
5.6.140.0130.07318.17
5.6.130.0000.05018.15
5.6.120.0100.07021.00
5.6.110.0170.08021.02
5.6.100.0130.07021.04
5.6.90.0200.06320.96
5.6.80.0100.08020.30
5.5.350.0270.08720.44
5.5.340.0100.05317.98
5.5.330.0100.03720.48
5.5.320.0230.05720.36
5.5.310.0270.07320.27
5.5.300.0000.05317.93
5.5.290.0030.05318.08
5.5.280.0100.08020.79
5.5.270.0100.05020.90
5.5.260.0030.08720.88
5.5.250.0130.07320.70
5.5.240.0100.07320.29
5.4.450.0230.05719.34
5.4.440.0400.07319.46
5.4.430.0570.05319.33
5.4.420.0930.06019.49
5.4.410.0870.06719.37
5.4.400.0170.05019.13
5.4.390.0200.08319.10
5.4.380.0230.06019.13
5.4.370.0200.05319.18
5.4.360.0270.06019.13
5.4.350.0100.07019.17
5.4.340.0230.05019.26
5.4.320.0230.06019.20
5.4.310.0170.05019.13
5.4.300.0170.05719.01
5.4.290.0230.05719.19
5.4.280.0200.07719.17
5.4.270.0230.04718.97
5.4.260.0370.04018.95
5.4.250.0100.07019.21
5.4.240.0730.06719.00
5.4.230.0470.06019.09
5.4.220.0270.05019.16
5.4.210.0530.04319.01
5.4.200.0200.06719.17
5.4.190.0100.05718.84
5.4.180.0230.07319.12
5.4.170.0770.05719.16
5.4.160.0570.05719.15
5.4.150.0870.05019.15
5.4.140.0270.05716.32
5.4.130.0230.05316.57
5.4.120.0130.05316.31
5.4.110.0200.05016.63
5.4.100.0300.06316.53
5.4.90.0170.05016.73
5.4.80.0100.05316.50
5.4.70.0270.04716.60
5.4.60.0200.04016.60
5.4.50.0170.05016.17
5.4.40.0230.04716.40
5.4.30.0200.05016.40
5.4.20.0230.04716.55
5.4.10.0470.04716.39
5.4.00.0270.04315.76

preferences:
19.32 ms | 401 KiB | 5 Q