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', $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)
8.3.60.0150.00616.63
8.3.50.0150.00521.98
8.3.40.0070.00718.97
8.3.30.0090.00618.67
8.3.20.0070.00020.21
8.3.10.0080.00023.53
8.3.00.0030.00617.75
8.2.180.0040.01218.54
8.2.170.0040.01122.96
8.2.160.0110.00422.25
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00417.49
8.2.110.0060.00322.20
8.2.100.0110.00017.91
8.2.90.0050.00318.03
8.2.80.0000.00819.15
8.2.70.0030.00717.63
8.2.60.0000.00817.92
8.2.50.0080.00018.07
8.2.40.0000.00821.13
8.2.30.0040.00420.52
8.2.20.0000.00817.78
8.2.10.0000.00818.00
8.2.00.0000.00817.95
8.1.280.0170.00325.92
8.1.270.0030.00523.82
8.1.260.0030.00526.35
8.1.250.0020.00528.09
8.1.240.0000.00923.84
8.1.230.0030.00820.88
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0030.00617.35
8.1.190.0090.00017.23
8.1.180.0040.00418.10
8.1.170.0090.00019.09
8.1.160.0000.00821.97
8.1.150.0040.00418.85
8.1.140.0040.00419.46
8.1.130.0030.00317.66
8.1.120.0000.00717.34
8.1.110.0030.00317.28
8.1.100.0050.00217.27
8.1.90.0000.00817.47
8.1.80.0000.00817.36
8.1.70.0000.00717.41
8.1.60.0040.00417.55
8.1.50.0040.00417.57
8.1.40.0080.00017.43
8.1.30.0000.00817.68
8.1.20.0050.00317.56
8.1.10.0040.00417.57
8.1.00.0040.00717.39
8.0.300.0020.00520.08
8.0.290.0040.00416.63
8.0.280.0030.00318.46
8.0.270.0000.00817.27
8.0.260.0070.00017.20
8.0.250.0030.00516.85
8.0.240.0050.00316.87
8.0.230.0000.00717.01
8.0.220.0070.00016.78
8.0.210.0040.00416.81
8.0.200.0050.00216.89
8.0.190.0070.00016.95
8.0.180.0040.00416.84
8.0.170.0040.00416.92
8.0.160.0070.00016.90
8.0.150.0070.00016.90
8.0.140.0000.00716.76
8.0.130.0030.00313.30
8.0.120.0050.00316.77
8.0.110.0000.00716.77
8.0.100.0040.00416.89
8.0.90.0070.00016.73
8.0.80.0030.01316.96
8.0.70.0000.00716.75
8.0.60.0070.00016.72
8.0.50.0050.00316.90
8.0.30.0090.00917.03
8.0.20.0110.00817.40
8.0.10.0030.00517.02
8.0.00.0100.00916.70
7.4.330.0000.00615.08
7.4.320.0030.00316.43
7.4.300.0030.00316.53
7.4.290.0070.00016.38
7.4.280.0090.00016.43
7.4.270.0030.00316.60
7.4.260.0060.00316.43
7.4.250.0020.00516.49
7.4.240.0020.00616.66
7.4.230.0040.00416.72
7.4.220.0090.00916.46
7.4.210.0120.00416.65
7.4.200.0070.00016.42
7.4.160.0060.01116.58
7.4.150.0070.01117.40
7.4.140.0170.01017.86
7.4.130.0120.00616.63
7.4.120.0120.00916.49
7.4.110.0110.01116.56
7.4.100.0170.00916.55
7.4.90.0130.00716.53
7.4.80.0180.00619.39
7.4.70.0130.00616.68
7.4.60.0200.00016.31
7.4.50.0080.00016.35
7.4.40.0080.00816.73
7.4.30.0140.00616.73
7.4.00.0100.00714.91
7.3.330.0050.00013.17
7.3.320.0000.00713.38
7.3.310.0070.00016.28
7.3.300.0050.00216.39
7.3.290.0030.00316.20
7.3.280.0090.01016.40
7.3.270.0150.00317.40
7.3.260.0170.00616.44
7.3.250.0120.00616.45
7.3.240.0120.00616.46
7.3.230.0120.00416.48
7.3.210.0110.00816.50
7.3.200.0170.00516.54
7.3.190.0050.01116.49
7.3.180.0030.01216.64
7.3.170.0150.00916.48
7.3.160.0090.00916.40
7.2.330.0110.00816.44
7.2.320.0090.00916.48
7.2.310.0100.00816.62
7.2.300.0140.00816.48
7.2.290.0080.01116.72
7.2.110.0170.00816.53
7.2.100.0170.00516.75
7.2.90.0150.01116.69
7.2.80.0200.01216.43
7.2.70.0250.00716.91
7.2.60.0110.01116.81
7.2.50.0420.01116.79
7.2.40.0230.00516.80
7.2.30.0430.00816.86
7.2.20.0210.00916.92
7.2.10.0320.00316.84
7.2.00.0180.00718.27
7.1.230.1800.01615.55
7.1.220.0430.00915.77
7.1.210.0210.00715.98
7.1.200.0090.01015.65
7.1.190.0170.00915.78
7.1.180.0100.01415.67
7.1.170.0330.00815.68
7.1.160.0180.00315.69
7.1.150.0170.00515.74
7.1.140.0350.01115.59
7.1.130.0290.00815.69
7.1.120.0310.01615.96
7.1.110.0310.01015.89
7.1.100.0230.01216.91
7.1.90.0320.01115.57
7.1.80.0160.01215.77
7.1.70.0250.00716.58
7.1.60.0210.00817.67
7.1.50.0170.00316.44
7.1.40.0230.01115.98
7.1.30.0270.01515.83
7.1.20.0500.01215.71
7.1.10.0170.00915.68
7.1.00.0060.04619.03
7.0.310.0510.00915.12
7.0.300.0120.00915.22
7.0.290.0290.01515.03
7.0.280.0120.01115.17
7.0.270.0370.00715.42
7.0.260.0320.00015.54
7.0.250.0200.00215.00
7.0.240.0280.00615.25
7.0.230.0230.00515.30
7.0.220.0340.00315.12
7.0.210.0210.01015.46
7.0.200.0290.00815.12
7.0.190.0180.01415.55
7.0.180.0160.00515.36
7.0.170.0230.00215.36
7.0.160.0160.00815.21
7.0.150.0430.00815.44
7.0.140.0190.00415.43
7.0.130.0160.00615.59
7.0.120.0140.00815.41
7.0.110.0210.00515.37
7.0.100.0180.00415.13
7.0.90.0150.00315.55
7.0.80.0180.00415.10
7.0.70.0100.01115.46
7.0.60.0080.04617.62
7.0.50.0130.02016.74
7.0.40.0130.02316.83
7.0.30.0080.03016.82
7.0.20.0200.03316.83
7.0.10.0180.03116.94
7.0.00.0140.02616.85
5.6.380.0120.00514.11
5.6.370.0180.00714.45
5.6.360.0170.00614.59
5.6.350.0110.01114.20
5.6.340.0230.01414.39
5.6.330.0300.00914.38
5.6.320.0260.00914.12
5.6.310.0210.00814.21
5.6.300.0210.00714.22
5.6.290.0150.00914.31
5.6.280.0090.04217.60
5.6.270.0150.01014.25
5.6.260.0120.01614.43
5.6.250.0160.00714.48
5.6.240.0110.01414.23
5.6.230.0100.01314.56
5.6.220.0160.00514.29
5.6.210.0130.04317.32
5.6.200.0100.04616.24
5.6.190.0110.02517.59
5.6.180.1720.02817.42
5.6.170.0240.02817.47
5.6.160.0130.02517.38
5.6.150.0130.02716.23
5.6.140.0090.02916.32
5.6.130.0120.03216.18
5.6.120.0150.04317.78
5.6.110.0110.02617.71
5.6.100.0100.03217.72
5.6.90.0120.04717.64
5.6.80.0110.04517.51
5.6.70.0120.01214.09
5.6.60.0110.01014.22
5.6.50.0190.00514.30
5.6.40.0130.01014.36
5.6.30.0200.00314.25
5.6.20.0140.00914.09
5.6.10.0180.00714.49
5.6.00.0150.00814.19
5.5.380.0180.00011.22
5.5.370.0080.00510.92
5.5.360.0090.00911.29
5.5.350.0110.04515.93
5.5.340.0070.03114.54
5.5.330.0090.02815.77
5.5.320.0190.02915.68
5.5.310.0190.02915.83
5.5.300.0130.04014.60
5.5.290.0140.03814.52
5.5.280.0070.04516.14
5.5.270.0070.02415.95
5.5.260.0090.04315.91
5.5.250.0120.02415.70
5.5.240.0100.04015.69
5.5.230.0000.01611.12
5.5.220.0150.00011.24
5.5.210.0120.00011.03
5.5.200.0130.00311.07
5.5.190.0070.00711.31
5.5.180.0110.00311.13
5.5.170.0130.01314.38
5.5.160.0080.00411.22
5.5.150.0130.00211.25
5.5.140.0050.00911.14
5.5.130.0090.00711.11
5.5.120.0090.00211.09
5.5.110.0050.00811.18
5.5.100.0080.00810.90
5.5.90.0080.00811.14
5.5.80.0090.00911.20
5.5.70.0140.00310.66
5.5.60.0100.00710.76
5.5.50.0070.00711.23
5.5.40.0060.00810.98
5.5.30.0060.01111.02
5.5.20.0070.00710.87
5.5.10.0050.01110.90
5.5.00.0100.00311.05
5.4.450.0210.03715.34
5.4.440.0350.03415.42
5.4.430.0390.02715.19
5.4.420.0280.03715.35
5.4.410.0050.03515.09
5.4.400.0180.02615.16
5.4.390.0150.02915.01
5.4.380.0130.02815.17
5.4.370.0250.03014.97
5.4.360.0150.02715.08
5.4.350.0200.02215.13
5.4.340.0160.02715.16
5.4.330.0090.00911.01
5.4.320.0160.02615.12
5.4.310.0100.03315.02
5.4.300.0120.03214.95
5.4.290.0140.04015.10
5.4.280.0100.03415.13
5.4.270.0140.02715.12
5.4.260.0130.03514.96
5.4.250.0110.03014.82
5.4.240.0130.02714.92
5.4.230.0230.03115.25
5.4.220.0150.02815.09
5.4.210.0170.02414.90
5.4.200.0170.03015.18
5.4.190.0180.02315.07
5.4.180.0170.02515.01
5.4.170.0110.02815.00
5.4.160.0140.02515.00
5.4.150.0100.03314.88
5.4.140.0180.03113.65
5.4.130.0200.02613.82
5.4.120.0110.03013.63
5.4.110.0120.02813.78
5.4.100.0130.02713.80
5.4.90.0210.02013.78
5.4.80.0100.02513.73
5.4.70.0100.02813.82
5.4.60.0130.02513.85
5.4.50.0110.02613.85
5.4.40.0180.03113.70
5.4.30.0150.02513.73
5.4.20.0150.03413.82
5.4.10.0060.03613.73
5.4.00.0110.02813.51

preferences:
43.46 ms | 401 KiB | 5 Q