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), " | "; } echo "\n"; $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)
8.3.40.0070.01318.71
8.3.30.0130.00318.76
8.3.20.0040.00420.25
8.3.10.0000.00823.39
8.3.00.0030.00619.25
8.2.170.0100.00722.96
8.2.160.0080.00622.08
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0040.00417.75
8.2.110.0000.01221.94
8.2.100.0040.00717.93
8.2.90.0080.00019.13
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0080.00017.93
8.2.50.0000.00818.07
8.2.40.0060.00319.32
8.2.30.0000.00820.63
8.2.20.0050.00317.82
8.2.10.0000.00818.13
8.2.00.0040.00418.18
8.1.270.0030.00523.98
8.1.260.0000.00826.35
8.1.250.0030.00528.09
8.1.240.0060.00322.66
8.1.230.0040.00817.79
8.1.220.0040.00417.79
8.1.210.0080.00018.77
8.1.200.0090.00017.35
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0060.00319.02
8.1.160.0080.00021.91
8.1.150.0000.00718.85
8.1.140.0050.00319.59
8.1.130.0040.00417.64
8.1.120.0000.00717.48
8.1.110.0030.00517.43
8.1.100.0000.00817.43
8.1.90.0000.00717.46
8.1.80.0080.00017.44
8.1.70.0030.00517.47
8.1.60.0030.00617.61
8.1.50.0000.00817.43
8.1.40.0000.00817.57
8.1.30.0000.01117.54
8.1.20.0040.00417.56
8.1.10.0030.00517.49
8.1.00.0030.00617.41
8.0.300.0030.00618.77
8.0.290.0040.00416.75
8.0.280.0000.00718.46
8.0.270.0050.00517.28
8.0.260.0030.00317.27
8.0.250.0040.00416.95
8.0.240.0000.00716.96
8.0.230.0050.00317.02
8.0.220.0030.00316.92
8.0.210.0040.00416.84
8.0.200.0070.00016.94
8.0.190.0030.00516.96
8.0.180.0080.00016.96
8.0.170.0000.00716.88
8.0.160.0080.00016.95
8.0.150.0000.00816.89
8.0.140.0030.00316.79
8.0.130.0030.00313.36
8.0.120.0060.00316.83
8.0.110.0040.00416.82
8.0.100.0000.00716.75
8.0.90.0030.00616.75
8.0.80.0060.01016.83
8.0.70.0000.00716.69
8.0.60.0040.00416.96
8.0.50.0070.00016.72
8.0.30.0090.01117.19
8.0.20.0150.00817.40
8.0.10.0000.00717.06
8.0.00.0140.00716.78
7.4.330.0000.00515.08
7.4.320.0000.00616.53
7.4.300.0070.00316.62
7.4.290.0030.00316.51
7.4.280.0070.00016.52
7.4.270.0000.00716.50
7.4.260.0040.00416.50
7.4.250.0050.00316.38
7.4.240.0000.00816.59
7.4.230.0030.00316.38
7.4.220.0130.00616.69
7.4.210.0080.00916.59
7.4.200.0000.00716.69
7.4.160.0060.00916.45
7.4.150.0000.01917.40
7.4.140.0190.00817.86
7.4.130.0070.01416.51
7.4.120.0080.01316.46
7.4.110.0060.01216.70
7.4.100.0110.00816.64
7.4.90.0030.01516.40
7.4.80.0120.01519.39
7.4.70.0140.00716.70
7.4.60.0160.00016.52
7.4.50.0030.00516.18
7.4.40.0060.01316.53
7.4.30.0110.01116.59
7.4.10.0040.01315.10
7.4.00.0090.01014.86
7.3.330.0000.00513.39
7.3.320.0000.00613.17
7.3.310.0030.00316.49
7.3.300.0030.00316.36
7.3.290.0080.00016.42
7.3.280.0070.01416.38
7.3.270.0130.01017.40
7.3.260.0130.00616.42
7.3.250.0100.00816.40
7.3.240.0080.01016.47
7.3.230.0110.00716.49
7.3.210.0040.01216.46
7.3.200.0130.00816.35
7.3.190.0110.00616.36
7.3.180.0030.01316.41
7.3.170.0160.00316.44
7.3.160.0070.01016.34
7.3.130.0050.01114.74
7.3.120.0050.01114.93
7.3.110.0090.00714.66
7.3.100.0080.00515.08
7.3.90.0060.00514.88
7.3.80.0080.00614.93
7.3.70.0050.00614.70
7.3.60.0070.00514.93
7.3.50.0030.01214.92
7.3.40.0030.00914.78
7.3.30.0030.00614.74
7.3.20.0080.00816.68
7.3.10.0080.00716.68
7.3.00.0070.00316.58
7.2.330.0110.01016.59
7.2.320.0080.01616.90
7.2.310.0060.01216.70
7.2.300.0080.01616.60
7.2.290.0150.00916.82
7.2.260.0050.01115.32
7.2.250.0110.00415.24
7.2.240.0040.01014.81
7.2.230.0050.01015.18
7.2.220.0060.00715.18
7.2.210.0030.00715.13
7.2.200.0090.00515.13
7.2.190.0060.00815.06
7.2.180.0060.00415.00
7.2.170.0050.00814.99
7.2.160.0030.01015.25
7.2.150.0030.01216.79
7.2.140.0080.00616.91
7.2.130.0060.00616.95
7.2.120.0080.00716.96
7.2.110.0050.01117.00
7.2.100.0050.01016.93
7.2.90.0080.00716.87
7.2.80.0040.01117.07
7.2.70.0060.00916.92
7.2.60.0080.00816.90
7.2.50.0070.00916.88
7.2.40.0070.00716.88
7.2.30.0050.01116.93
7.2.20.0070.00616.94
7.2.10.0080.00716.92
7.2.00.0040.01017.48
7.1.330.0050.00815.70
7.1.320.0050.00915.73
7.1.310.0100.00315.71
7.1.300.0030.00615.86
7.1.290.0010.01115.72
7.1.280.0030.00915.71
7.1.270.0090.00315.88
7.1.260.0080.00615.82
7.1.250.0060.00215.84
7.1.240.0070.00715.90
7.1.230.0040.00815.78
7.1.220.0060.00715.73
7.1.210.0060.00715.81
7.1.200.0060.00815.73
7.1.190.0070.00715.83
7.1.180.0030.00915.75
7.1.170.0050.00715.82
7.1.160.0090.00515.89
7.1.150.0060.00615.81
7.1.140.0050.01015.86
7.1.130.0040.00815.63
7.1.120.0080.00315.79
7.1.110.0080.00315.80
7.1.100.0020.01016.47
7.1.90.0090.00315.64
7.1.80.0020.01115.55
7.1.70.0030.00915.99
7.1.60.0040.01217.14
7.1.50.0080.00716.25
7.1.40.0080.00215.86
7.1.30.0020.00915.92
7.1.20.0010.00715.78
7.1.10.0030.00915.88
7.1.00.0040.02917.95
7.0.330.0050.00615.45
7.0.320.0020.01015.44
7.0.310.0110.00615.39
7.0.300.0060.00715.43
7.0.290.0060.00515.33
7.0.280.0070.00915.29
7.0.270.0040.00815.42
7.0.260.0070.00815.34
7.0.250.0060.00715.47
7.0.240.0020.01015.53
7.0.230.0030.01015.30
7.0.220.0020.01015.56
7.0.210.0040.00915.22
7.0.200.0230.00715.34
7.0.190.0080.00415.28
7.0.180.0020.00915.54
7.0.170.0050.00415.47
7.0.160.0050.00815.50
7.0.150.0030.00615.45
7.0.140.0030.01215.49
7.0.130.0080.00215.45
7.0.120.0020.00715.39
7.0.110.0060.00415.51
7.0.100.0060.00915.54
7.0.90.0080.00315.43
7.0.80.0070.00415.11
7.0.70.0040.00715.42
7.0.60.0090.03116.88
7.0.50.0080.03016.34
7.0.40.0090.03015.77
7.0.30.0130.02915.66
7.0.20.0100.01815.73
7.0.10.0160.02115.77
7.0.00.0080.02915.67
5.6.400.0120.00314.50
5.6.390.0080.00814.31
5.6.380.0060.00714.38
5.6.370.0050.00814.38
5.6.360.0080.00614.32
5.6.350.0070.00714.45
5.6.340.0040.00514.44
5.6.330.0050.01014.43
5.6.320.0050.01114.37
5.6.310.0050.00614.62
5.6.300.0090.00214.52
5.6.290.0020.00914.48
5.6.280.0070.02316.67
5.6.270.0060.00614.42
5.6.260.0090.00514.43
5.6.250.0080.00414.54
5.6.240.0040.01014.38
5.6.230.0050.00614.24
5.6.220.0080.00314.38
5.6.210.0010.02916.45
5.6.200.0060.03315.68
5.6.190.0030.02616.50
5.6.180.0920.02216.44
5.6.170.0150.03316.41
5.6.160.0030.03516.34
5.6.150.0080.03115.55
5.6.140.0130.02715.59
5.6.130.0050.01815.54
5.6.120.0060.03316.72
5.6.110.0080.03416.43
5.6.100.0090.03016.54
5.6.90.0100.03316.58
5.6.80.0060.02916.36
5.6.70.0050.00814.38
5.6.60.0050.00814.47
5.6.50.0050.00814.36
5.6.40.0050.00814.38
5.6.30.0060.00814.20
5.6.20.0050.00714.52
5.6.10.0050.00614.19
5.6.00.0070.00614.38
5.5.380.0090.00414.34
5.5.370.0080.00414.40
5.5.360.0030.00814.21
5.5.350.0100.02116.39
5.5.340.0060.03315.51
5.5.330.0070.02416.33
5.5.320.0120.01816.25
5.5.310.0140.02016.36
5.5.300.0030.02115.41
5.5.290.0060.03115.45
5.5.280.0030.02216.65
5.5.270.0070.03116.38
5.5.260.0090.03116.51
5.5.250.0080.02216.42
5.5.240.0060.03016.15
5.5.230.0060.00914.38
5.5.220.0010.01014.22
5.5.210.0040.00914.42
5.5.200.0080.00513.98
5.5.190.0080.00614.33
5.5.180.0020.01314.29
5.5.170.0070.00414.35
5.5.160.0070.00814.17
5.5.150.0090.00614.37
5.5.140.0050.00514.19
5.5.130.0050.00714.42
5.5.120.0070.00814.34
5.5.110.0070.00314.25
5.5.100.0030.01214.15
5.5.90.0050.00914.28
5.5.80.0070.00714.04
5.5.70.0030.01014.06
5.5.60.0070.00714.10
5.5.50.0030.01014.17
5.5.40.0070.00814.12
5.5.30.0030.01114.38
5.5.20.0050.01013.98
5.5.10.0050.01014.16
5.5.00.0110.00514.07
5.4.450.0070.02414.92
5.4.440.0100.02814.89
5.4.430.0080.02414.89
5.4.420.0090.02114.89
5.4.410.0070.02514.81
5.4.400.0090.01914.85
5.4.390.0100.02614.69
5.4.380.0090.02114.69
5.4.370.0150.01414.82
5.4.360.0100.02314.75
5.4.350.0120.02214.83
5.4.340.0060.02514.83
5.4.330.0070.00512.62
5.4.320.0130.02614.81
5.4.310.0150.01714.74
5.4.300.0180.02214.83
5.4.290.0120.02214.75
5.4.280.0130.02614.82
5.4.270.0200.02514.81
5.4.260.0100.02414.80
5.4.250.0200.02014.78
5.4.240.0230.02114.78
5.4.230.0070.02214.76
5.4.220.0100.02614.82
5.4.210.0100.02514.82
5.4.200.0070.02314.85
5.4.190.0110.02514.74
5.4.180.0050.02414.81
5.4.170.0250.02514.73
5.4.160.0090.02814.82
5.4.150.0170.02814.73
5.4.140.0180.02913.89
5.4.130.0170.02713.98
5.4.120.0250.02213.92
5.4.110.0190.02113.95
5.4.100.0130.02613.83
5.4.90.0120.02213.87
5.4.80.0260.01713.95
5.4.70.0290.02313.94
5.4.60.0300.01913.95
5.4.50.0060.02213.93
5.4.40.0180.02013.88
5.4.30.0090.02913.88
5.4.20.0090.02113.94
5.4.10.0070.02313.88
5.4.00.0170.02313.67

preferences:
47.01 ms | 400 KiB | 5 Q