3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $mVars; public function generateVars() { $this->mVars = [ 'x', 'y', 'z' ]; } public function dumpVars() { var_dump( $this->mVars ); } } // 1. Make mVars public, uncomment line 16, then eval. $before = new Foo(); $before->generateVars(); // echo serialize($before) . "\n"; define('BEFORE', 1); // 2. Insert the serialised text from first eval $serialised = 'O:3:"Foo":1:{s:5:"mVars";a:3:{i:0;s:1:"x";i:1;s:1:"y";i:2;s:1:"z";}}'; // 3. Make mVars private, comment out line 16, then eval $after = unserialize($serialised); $after->dumpVars();

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)
8.3.60.0120.00316.50
8.3.50.0100.00716.18
8.3.40.0040.01118.84
8.3.30.0090.00618.68
8.3.20.0040.00421.91
8.3.10.0080.00021.90
8.3.00.0080.00022.18
8.2.180.0000.01518.54
8.2.170.0080.00622.96
8.2.160.0100.00322.14
8.2.150.0090.00024.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0000.00826.16
8.2.110.0090.00020.51
8.2.100.0080.00417.85
8.2.90.0040.00417.80
8.2.80.0050.00319.02
8.2.70.0080.00017.50
8.2.60.0040.00417.50
8.2.50.0030.00517.63
8.2.40.0040.00419.35
8.2.30.0040.00419.25
8.2.20.0070.00017.99
8.2.10.0090.00019.17
8.2.00.0040.00419.11
8.1.280.0120.00325.92
8.1.270.0030.00620.52
8.1.260.0020.00526.35
8.1.250.0000.00728.09
8.1.240.0060.01519.09
8.1.230.0110.00020.85
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0000.00817.23
8.1.180.0030.00618.10
8.1.170.0000.00718.93
8.1.160.0000.00719.00
8.1.150.0000.00718.74
8.1.140.0040.00420.80
8.1.130.0030.00320.07
8.1.120.0000.00717.34
8.1.110.0090.00017.40
8.1.100.0080.00017.39
8.1.90.0000.00717.30
8.1.80.0030.00617.35
8.1.70.0110.00017.42
8.1.60.0060.00617.63
8.1.50.0050.00317.56
8.1.40.0000.00817.48
8.1.30.0090.00017.49
8.1.20.0000.00717.63
8.1.10.0000.00817.55
8.1.00.0050.00317.46
8.0.300.0040.00420.12
8.0.290.0000.00716.75
8.0.280.0000.00718.30
8.0.270.0030.00317.20
8.0.260.0000.00620.20
8.0.250.0070.00016.93
8.0.240.0040.00417.01
8.0.230.0000.00716.81
8.0.220.0050.00216.76
8.0.210.0070.00016.82
8.0.200.0030.00316.91
8.0.190.0000.00716.94
8.0.180.0000.00716.80
8.0.170.0070.00416.91
8.0.160.0050.00316.93
8.0.150.0090.00016.78
8.0.140.0030.00316.86
8.0.130.0030.00313.29
8.0.120.0040.00416.90
8.0.110.0030.00616.81
8.0.100.0000.00716.72
8.0.90.0000.00716.80
8.0.80.0100.00716.88
8.0.70.0040.00416.93
8.0.60.0050.00216.68
8.0.50.0000.00716.91
8.0.30.0100.01116.95
8.0.20.0170.00317.13
8.0.10.0000.00716.84
8.0.00.0130.01016.69
7.4.330.0050.00016.74
7.4.320.0030.00316.50
7.4.300.0030.00316.50
7.4.290.0050.00316.51
7.4.280.0080.00016.50
7.4.270.0080.00016.50
7.4.260.0030.00313.34
7.4.250.0000.00816.32
7.4.240.0020.00516.52
7.4.230.0030.00316.60
7.4.220.0040.00416.48
7.4.210.0060.01016.54
7.4.200.0000.00716.39
7.4.130.0130.00616.55
7.4.120.0060.01216.48
7.4.110.0030.01316.57
7.4.100.0090.00916.57
7.4.90.0130.00616.50
7.4.80.0040.01319.39
7.4.70.0060.01016.44
7.4.60.0110.00816.42
7.4.50.0040.01116.31
7.4.40.0060.01216.53
7.4.00.0020.01515.02
7.3.330.0040.00416.39
7.3.320.0060.00013.14
7.3.310.0000.00716.16
7.3.300.0030.00316.15
7.3.290.0000.00716.35
7.3.280.0080.00616.30
7.3.260.0110.00916.40
7.3.240.0090.00816.35
7.3.230.0190.00016.36
7.3.210.0040.01416.36
7.3.200.0180.00616.32
7.3.190.0090.01216.30
7.3.180.0090.01316.35
7.3.170.0110.01116.32
7.3.160.0030.01416.51
7.3.120.0100.00714.87
7.3.110.0070.00714.75
7.3.100.0030.00914.92
7.3.90.0120.00314.56
7.3.80.0050.01114.65
7.3.70.0090.00614.59
7.3.60.0080.00714.62
7.3.50.0100.00614.67
7.3.40.0100.00514.72
7.3.30.0100.00614.53
7.3.20.0060.00916.49
7.3.10.0070.00916.51
7.3.00.0040.01216.56
7.2.330.0050.01416.73
7.2.320.0060.01016.28
7.2.310.0030.01316.58
7.2.300.0090.00916.39
7.2.290.0150.01216.78
7.2.250.0030.01615.02
7.2.240.0070.00715.25
7.2.230.0090.00914.99
7.2.220.0140.00015.07
7.2.210.0090.00614.90
7.2.200.0110.00514.87
7.2.190.0100.00714.83
7.2.180.0090.00514.74
7.2.170.0080.00814.94
7.2.160.0060.01114.93
7.2.150.0090.00716.70
7.2.140.0090.00916.65
7.2.130.0070.01416.85
7.2.120.0120.00616.66
7.2.110.0090.00816.76
7.2.100.0110.00616.61
7.2.90.0100.00916.58
7.2.80.0080.01016.68
7.2.70.0070.01116.73
7.2.60.0090.00916.72
7.2.50.0120.00816.62
7.2.40.0100.00816.72
7.2.30.0070.01116.56
7.2.20.0080.01016.76
7.2.10.0080.01116.63
7.2.00.0070.00916.76
7.1.330.0030.01415.76
7.1.320.0100.00315.73
7.1.310.0070.00815.58
7.1.300.0080.00815.60
7.1.290.0070.00715.54
7.1.280.0050.00715.53
7.1.270.0080.00615.72
7.1.260.0030.01215.57
7.1.250.0050.00915.47
7.1.240.0130.00715.64
7.1.230.0130.00815.48
7.1.220.0100.01115.63
7.1.210.0090.01515.57
7.1.200.0120.00815.42
7.1.190.0130.01015.60
7.1.180.0130.00715.64
7.1.170.0140.00915.63
7.1.160.0160.00615.36
7.1.150.0100.01115.56
7.1.140.0150.00615.56
7.1.130.0120.01015.46
7.1.120.0130.01015.60
7.1.110.0100.01015.67
7.1.100.0160.00715.78
7.1.90.0150.00915.42
7.1.80.0150.00815.67
7.1.70.0110.01115.61
7.1.60.0070.01715.65
7.1.50.0150.00815.46
7.1.40.0130.01115.47
7.1.30.0130.00915.63
7.1.20.0130.00915.59
7.1.10.0130.00715.55
7.1.00.0130.01015.65
7.0.330.0120.00615.08
7.0.320.0090.01115.15
7.0.310.0100.00815.07
7.0.300.0100.01115.21
7.0.290.0120.00714.98
7.0.280.0100.01115.21
7.0.270.0120.00815.11
7.0.260.0100.01115.06
7.0.250.0120.00815.25
7.0.240.0130.00715.36
7.0.230.0140.00715.41
7.0.220.0140.00615.22
7.0.210.0160.00515.37
7.0.200.0140.00915.26
7.0.190.0140.00715.29
7.0.180.0140.00815.27
7.0.170.0110.01115.26
7.0.160.0110.01015.28
7.0.150.0100.00915.39
7.0.140.0130.00715.21
7.0.130.0150.00715.32
7.0.120.0120.00815.23
7.0.110.0090.01015.25
7.0.100.0130.00815.33
7.0.90.0120.00815.24
7.0.80.0170.00615.26
7.0.70.0110.01015.18
7.0.60.0130.00815.22
7.0.50.0150.00815.21
7.0.40.0110.00915.40
7.0.30.0130.00815.38
7.0.20.0180.00515.18
7.0.10.0140.00815.32
7.0.00.0140.00815.40
5.6.400.0050.01414.09
5.6.390.0090.01014.02
5.6.380.0130.01014.32
5.6.370.0100.01014.39
5.6.360.0100.01014.30
5.6.350.0100.01114.40
5.6.340.0170.00614.04
5.6.330.0110.01114.19
5.6.320.0130.01014.26
5.6.310.0130.00914.44
5.6.300.0160.00714.35
5.6.290.0110.00914.36
5.6.280.0110.01014.24
5.6.270.0120.01014.35
5.6.260.0120.01014.17
5.6.250.0110.00914.30
5.6.240.0120.01014.32
5.6.230.0120.01014.31
5.6.220.0130.01114.25
5.6.210.0130.01114.32
5.6.200.0150.00614.29
5.6.190.0120.00814.41
5.6.180.0130.01014.32
5.6.170.0150.01014.36
5.6.160.0120.01114.40
5.6.150.0120.01014.26
5.6.140.0130.01114.40
5.6.130.0160.00914.35
5.6.120.0180.00514.30
5.6.110.0080.01514.38
5.6.100.0110.01214.27
5.6.90.0160.00514.24
5.6.80.0120.00814.11
5.6.70.0100.01314.24
5.6.60.0130.01114.18
5.6.50.0190.00514.23
5.6.40.0170.00814.15
5.6.30.0130.01214.09
5.6.20.0140.00814.32
5.6.10.0130.01014.28
5.6.00.0130.01114.27
5.5.380.0140.00714.29
5.5.370.0110.01114.24
5.5.360.0130.00914.24
5.5.350.0140.00914.17
5.5.340.0130.00814.16
5.5.330.0140.00914.22
5.5.320.0150.01314.06
5.5.310.0110.01314.20
5.5.300.0110.01314.27
5.5.290.0160.00814.41
5.5.280.0160.00714.18
5.5.270.0090.01314.21
5.5.260.0080.01314.24
5.5.250.0160.00514.17
5.5.240.0090.01214.00
5.5.230.0120.01114.06
5.5.220.0140.01014.18
5.5.210.0150.01014.12
5.5.200.0120.01114.07
5.5.190.0110.01214.16
5.5.180.0140.00914.28
5.5.170.0170.00714.20
5.5.160.0110.01314.23
5.5.150.0150.00914.18
5.5.140.0140.00814.07
5.5.130.0170.00814.15
5.5.120.0130.01014.12
5.5.110.0110.01114.15
5.5.100.0130.01014.18
5.5.90.0120.01114.15
5.5.80.0140.01314.25
5.5.70.0160.01014.27
5.5.60.0150.00814.00
5.5.50.0140.00914.09
5.5.40.0160.00913.98
5.5.30.0100.01314.13
5.5.20.0130.00813.94
5.5.10.0160.00514.10
5.5.00.0120.01014.00
5.4.450.0110.00511.14
5.4.440.0130.00511.02
5.4.430.0080.00711.14
5.4.420.0100.00511.10
5.4.410.0100.00611.15
5.4.400.0070.01010.83
5.4.390.0130.00310.86
5.4.380.0100.00711.04
5.4.370.0120.00810.86
5.4.360.0100.00810.86
5.4.350.0120.00410.94
5.4.340.0130.00511.00
5.4.330.0090.00910.98
5.4.320.0120.00511.03
5.4.310.0100.00811.12
5.4.300.0100.00810.95
5.4.290.0120.00510.98
5.4.280.0080.00811.11
5.4.270.0100.00710.85
5.4.260.0110.00611.12
5.4.250.0120.00711.03
5.4.240.0120.00610.98
5.4.230.0130.00711.06
5.4.220.0090.00710.85
5.4.210.0100.00610.84
5.4.200.0150.00310.82
5.4.190.0070.00710.81
5.4.180.0110.00710.92
5.4.170.0080.00810.81
5.4.160.0100.00710.89
5.4.150.0100.00610.83
5.4.140.0120.00511.06
5.4.130.0050.01310.97
5.4.120.0140.00310.73
5.4.110.0130.00410.86
5.4.100.0080.00710.94
5.4.90.0070.01010.97
5.4.80.0110.00410.95
5.4.70.0130.00311.02
5.4.60.0090.00610.95
5.4.50.0110.00410.83
5.4.40.0080.00810.94
5.4.30.0080.00810.95
5.4.20.0100.00611.00
5.4.10.0080.00810.88
5.4.00.0130.00411.02
5.3.290.0110.00510.26
5.3.280.0130.00510.10
5.3.270.0060.00910.13
5.3.260.0120.00310.29
5.3.250.0050.01010.20
5.3.240.0070.00710.06
5.3.230.0070.00710.09
5.3.220.0100.00510.06
5.3.210.0060.00910.22
5.3.200.0100.00410.20
5.3.190.0090.00610.16
5.3.180.0080.00710.34
5.3.170.0080.00510.34
5.3.160.0060.00710.32
5.3.150.0070.00710.33
5.3.140.0060.00710.26
5.3.130.0080.00710.26
5.3.120.0080.00810.18
5.3.110.0090.00510.25
5.3.100.0100.00510.34
5.3.90.0070.00610.35
5.3.80.0070.00810.18
5.3.70.0100.00410.20
5.3.60.0100.00510.34
5.3.50.0100.00510.20
5.3.40.0100.00510.16
5.3.30.0100.00410.28
5.3.20.0070.00810.15
5.3.10.0080.00810.06
5.3.00.0120.00310.03
5.2.170.0080.0059.33
5.2.160.0060.0069.32
5.2.150.0040.0089.20
5.2.140.0080.0049.26
5.2.130.0080.0049.28
5.2.120.0050.0089.17
5.2.110.0060.0069.11
5.2.100.0050.0089.30
5.2.90.0080.0069.11
5.2.80.0090.0059.15
5.2.70.0100.0039.15
5.2.60.0090.0059.06
5.2.50.0060.0099.19
5.2.40.0060.0059.16
5.2.30.0070.0059.17
5.2.20.0080.0048.89
5.2.10.0080.0048.99
5.2.00.0070.0048.94
5.1.60.0060.0068.24
5.1.50.0060.0058.24
5.1.40.0080.0038.46
5.1.30.0070.0048.47
5.1.20.0080.0038.32
5.1.10.0070.0038.21
5.1.00.0040.0068.24
5.0.50.0050.0047.47
5.0.40.0040.0047.37
5.0.30.0050.0047.36
5.0.20.0080.0027.35
5.0.10.0030.0057.24
5.0.00.0040.0057.25
4.4.90.0040.0047.23
4.4.80.0050.0047.23
4.4.70.0020.0057.23
4.4.60.0040.0037.23
4.4.50.0050.0047.23
4.4.40.0050.0047.23
4.4.30.0040.0037.23
4.4.20.0040.0037.23
4.4.10.0040.0047.23
4.4.00.0040.0047.23
4.3.110.0040.0047.23
4.3.100.0010.0077.23
4.3.90.0050.0037.23
4.3.80.0040.0047.23
4.3.70.0050.0037.23
4.3.60.0060.0027.23
4.3.50.0040.0047.23
4.3.40.0060.0037.23
4.3.30.0050.0027.23
4.3.20.0040.0047.23
4.3.10.0030.0037.23
4.3.00.0020.0047.23

preferences:
79.19 ms | 401 KiB | 5 Q