3v4l.org

run code in 300+ PHP versions simultaneously
<?php class test implements Serializable { public $a; public function __construct( $_val ){ $this->a = $_val; } public function serialize() { $tmp = (object) array(); $tmp->a = $this->a; echo serialize( $tmp ) . "\n"; return serialize( $tmp ); } public function unserialize($var) {} } $n = array(); $n[0] = new test('tmp1'); $n[1] = new test('tmp2'); print_r( unserialize( serialize( $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)
8.3.60.0150.00618.80
8.3.50.0080.01021.14
8.3.40.0150.00618.74
8.3.30.0070.00720.34
8.3.20.0070.00318.73
8.3.10.0040.00420.98
8.3.00.0040.00423.52
8.2.180.0090.00616.50
8.2.170.0110.00422.96
8.2.160.0100.00320.43
8.2.150.0030.00524.18
8.2.140.0060.00324.66
8.2.130.0050.00326.16
8.2.120.0000.00819.95
8.2.110.0090.00020.57
8.2.100.0110.00018.03
8.2.90.0000.00819.23
8.2.80.0050.00219.41
8.2.70.0030.00617.75
8.2.60.0030.00517.93
8.2.50.0060.00618.07
8.2.40.0000.00918.03
8.2.30.0000.00819.50
8.2.20.0050.00217.71
8.2.10.0050.00317.71
8.2.00.0070.00017.70
8.1.280.0170.00325.92
8.1.270.0000.00923.99
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0000.00823.96
8.1.230.0040.00720.95
8.1.220.0040.00418.77
8.1.210.0030.00718.96
8.1.200.0100.00017.48
8.1.190.0040.00417.51
8.1.180.0040.00418.10
8.1.170.0040.00418.69
8.1.160.0000.00718.95
8.1.150.0050.00318.57
8.1.140.0040.00417.34
8.1.130.0000.00717.78
8.1.120.0000.00717.46
8.1.110.0040.00417.46
8.1.100.0000.00717.34
8.1.90.0040.00417.50
8.1.80.0000.00717.47
8.1.70.0000.00717.44
8.1.60.0090.00017.48
8.1.50.0030.00517.51
8.1.40.0060.00317.45
8.1.30.0050.00217.51
8.1.20.0030.00517.56
8.1.10.0040.00417.57
8.1.00.0000.00817.53
8.0.300.0000.01019.89
8.0.290.0070.00017.18
8.0.280.0000.00718.42
8.0.270.0030.00317.33
8.0.260.0000.00718.36
8.0.250.0040.00416.91
8.0.240.0040.00416.94
8.0.230.0070.00017.03
8.0.220.0000.00716.94
8.0.210.0040.00416.97
8.0.200.0000.00617.03
8.0.190.0040.00417.00
8.0.180.0070.00016.99
8.0.170.0030.00617.03
8.0.160.0000.00716.86
8.0.150.0070.00016.81
8.0.140.0030.00616.91
8.0.130.0030.00313.39
8.0.120.0070.00016.92
8.0.110.0040.00416.85
8.0.100.0070.00016.99
8.0.90.0000.00716.84
8.0.80.0040.01117.02
8.0.70.0070.00016.82
8.0.60.0070.00017.04
8.0.50.0040.00416.99
8.0.30.0130.00517.04
8.0.20.0050.01417.40
8.0.10.0040.00417.20
8.0.00.0080.01116.91
7.4.330.0030.00316.77
7.4.320.0030.00316.57
7.4.300.0060.00016.59
7.4.290.0060.00316.57
7.4.280.0040.00416.51
7.4.270.0000.00716.53
7.4.260.0000.00513.24
7.4.250.0040.00416.48
7.4.240.0040.00416.52
7.4.230.0030.00316.42
7.4.220.0180.00616.69
7.4.210.0060.00916.48
7.4.200.0030.00516.37
7.4.190.0040.00416.77
7.4.160.0120.00516.53
7.4.150.0040.01317.40
7.4.140.0140.00317.86
7.4.130.0160.00516.53
7.4.120.0120.00516.54
7.4.110.0060.01116.58
7.4.100.0090.00916.59
7.4.90.0090.00916.55
7.4.80.0100.01319.39
7.4.70.0100.00616.63
7.4.60.0100.00816.55
7.4.50.0040.00416.64
7.4.40.0090.00622.77
7.4.30.0030.01316.57
7.4.00.0090.00914.82
7.3.330.0000.00613.39
7.3.320.0000.00613.25
7.3.310.0000.00716.48
7.3.300.0000.00716.47
7.3.290.0080.00616.45
7.3.280.0060.01216.44
7.3.270.0080.00817.40
7.3.260.0070.01318.24
7.3.250.0070.01316.53
7.3.240.0130.00416.38
7.3.230.0130.00316.57
7.3.210.0110.00716.60
7.3.200.0090.01419.39
7.3.190.0100.00916.55
7.3.180.0060.01016.56
7.3.170.0060.01016.52
7.3.160.0030.01316.47
7.3.120.0070.01114.66
7.3.00.0000.01616.53
7.2.330.0040.01816.61
7.2.320.0190.00316.75
7.2.310.0090.01616.79
7.2.300.0100.00716.54
7.2.290.0080.00816.75
7.2.130.0030.01016.60
7.2.120.0070.00716.82
7.2.110.0000.01216.91
7.2.100.0030.00717.00
7.2.90.0040.01417.08
7.2.80.0070.00417.05
7.2.70.0100.00717.08
7.2.60.0070.01017.00
7.2.50.0070.00716.96
7.2.40.0030.00917.02
7.2.30.0060.01016.91
7.2.20.0080.00616.75
7.2.10.0100.00617.11
7.2.00.0050.01218.18
7.1.250.0000.01615.86
7.1.240.0030.01015.79
7.1.230.0060.00315.79
7.1.220.0080.00315.71
7.1.210.0100.00715.67
7.1.200.0000.00815.67
7.1.190.0050.00815.79
7.1.180.0040.00715.55
7.1.170.0040.01115.71
7.1.160.0000.00915.95
7.1.150.0000.01215.96
7.1.140.0110.00015.92
7.1.130.0090.00615.46
7.1.120.0060.00615.98
7.1.110.0110.00415.81
7.1.100.0060.00916.85
7.1.90.0060.00615.80
7.1.80.0090.00315.74
7.1.70.0070.00516.44
7.1.60.0080.01217.36
7.1.50.0050.01216.49
7.1.40.0000.01415.54
7.1.30.0150.00015.63
7.1.20.0060.00615.82
7.1.10.0070.00715.90
7.1.00.0030.02019.08
7.0.330.0000.00815.44
7.0.320.0000.01315.29
7.0.310.0030.00615.52
7.0.300.0100.00315.61
7.0.290.0080.00615.38
7.0.280.0030.01015.46
7.0.270.0000.00915.37
7.0.260.0060.00715.53
7.0.250.0070.00415.46
7.0.240.0000.01215.51
7.0.230.0040.01115.59
7.0.220.0000.00715.15
7.0.210.0080.00415.56
7.0.200.0020.00916.13
7.0.190.0040.00815.48
7.0.180.0040.00715.23
7.0.170.0070.00715.60
7.0.160.0030.01015.46
7.0.150.0110.00715.56
7.0.140.0040.03918.79
7.0.130.0040.01115.60
7.0.120.0040.00815.54
7.0.110.0060.00715.34
7.0.100.0110.03817.77
7.0.90.0100.04517.73
7.0.80.0050.04617.64
7.0.70.0070.04517.79
7.0.60.0070.03917.70
7.0.50.0080.04317.99
7.0.40.0080.04116.71
7.0.30.0080.02316.77
7.0.20.0030.04716.73
7.0.10.0030.04116.62
7.0.00.0100.04516.73
5.6.380.0070.00714.30
5.6.370.0040.00714.39
5.6.360.0040.00814.64
5.6.350.0040.00414.59
5.6.340.0040.00414.53
5.6.330.0060.01014.72
5.6.320.0070.00414.64
5.6.310.0120.00014.31
5.6.300.0000.01214.59
5.6.290.0100.00714.66
5.6.280.0070.03917.80
5.6.270.0060.00614.55
5.6.260.0030.01214.87
5.6.250.0100.04217.59
5.6.240.0040.04517.50
5.6.230.0030.04517.56
5.6.220.0070.04117.66
5.6.210.0070.04517.59
5.6.200.0070.04517.66
5.6.190.0070.04217.70
5.6.180.0080.04517.63
5.6.170.0090.04517.66
5.6.160.0080.04117.73
5.6.150.0130.04317.82
5.6.140.0050.04517.80
5.6.130.0090.04217.85
5.6.120.0080.04317.71
5.6.110.0100.03817.74
5.6.100.0140.03817.55
5.6.90.0030.04317.55
5.6.80.0060.04217.52
5.6.70.0070.04417.53
5.6.60.0080.03817.31
5.6.50.0130.03617.36
5.6.40.0080.04017.38
5.6.30.0030.04017.29
5.6.20.0050.02517.43
5.6.10.0070.03017.35
5.6.00.0070.04017.40
5.5.380.0050.03915.78
5.5.370.0030.02716.00
5.5.360.0040.04415.81
5.5.350.0180.04015.97
5.5.340.0080.03716.08
5.5.330.0090.04516.14
5.5.320.0070.04416.08
5.5.310.0110.04016.02
5.5.300.0110.03316.11
5.5.290.0060.04116.17
5.5.280.0090.04116.01
5.5.270.0050.04616.13
5.5.260.0020.04215.95
5.5.250.0050.04516.01
5.5.240.0090.03515.80
5.5.230.0110.04015.79
5.5.220.0030.04315.78
5.5.210.0120.03815.58
5.5.200.0030.02615.68
5.5.190.0050.04215.74
5.5.180.0100.03815.62
5.5.170.0040.01111.38
5.5.160.0030.02515.80
5.5.150.0050.04315.80
5.5.140.0090.03415.81
5.5.130.0130.03815.81
5.5.120.0050.04115.88
5.5.110.0080.04015.60
5.5.100.0080.04215.68
5.5.90.0070.02215.64
5.5.80.0030.04515.48
5.5.70.0030.04115.71
5.5.60.0100.03815.82
5.5.50.0030.04215.46
5.5.40.0070.03815.62
5.5.30.0130.03315.61
5.5.20.0080.02315.75
5.5.10.0120.03615.64
5.5.00.0100.03815.65
5.4.450.0090.04115.45
5.4.440.0050.04515.25
5.4.430.0070.04315.29
5.4.420.0030.03315.38
5.4.410.0050.04015.26
5.4.400.0070.04215.13
5.4.390.0030.03415.06
5.4.380.0080.03515.03
5.4.370.0030.04415.09
5.4.360.0020.03115.21
5.4.350.0100.02815.06
5.4.340.0090.03714.99
5.4.330.0040.00711.21
5.4.320.0050.04615.17
5.4.310.0000.04515.14
5.4.300.0080.03715.17
5.4.290.0070.04015.11
5.4.280.0100.03915.18
5.4.270.0110.03515.06
5.4.260.0030.03215.22
5.4.250.0070.04015.14
5.4.240.0050.04215.22
5.4.230.0050.04315.18
5.4.220.0100.03815.14
5.4.210.0080.03815.18
5.4.200.0050.02815.05
5.4.190.0080.02315.11
5.4.180.0050.02515.21
5.4.170.0090.03815.20
5.4.160.0070.04215.18
5.4.150.0080.04315.20
5.4.140.0050.04013.63
5.4.130.0030.02513.86
5.4.120.0090.03213.78
5.4.110.0050.03713.92
5.4.100.0090.02613.78
5.4.90.0020.04013.72
5.4.80.0080.03213.66
5.4.70.0080.03713.90
5.4.60.0060.03913.79
5.4.50.0050.04013.80
5.4.40.0060.03913.84
5.4.30.0080.03313.76
5.4.20.0050.03713.88
5.4.10.0080.03613.81
5.4.00.0070.03313.51
5.3.290.0070.03812.79
5.3.280.0030.03512.75
5.3.270.0020.03912.56
5.3.260.0020.04212.56
5.3.250.0130.03212.48
5.3.240.0080.04212.71
5.3.230.0020.04412.69
5.3.220.0090.03512.54
5.3.210.0060.04012.54
5.3.200.0080.03012.56
5.3.190.0120.03312.52
5.3.180.0100.03512.63
5.3.170.0050.04112.64
5.3.160.0020.04112.73
5.3.150.0060.04312.66
5.3.140.0080.03912.68
5.3.130.0050.04212.72
5.3.120.0080.03512.60
5.3.110.0070.04112.64
5.3.100.0060.03912.40
5.3.90.0060.04012.38
5.3.80.0110.03512.38
5.3.70.0080.03812.17
5.3.60.0000.03712.35
5.3.50.0070.03912.05
5.3.40.0020.04012.34
5.3.30.0080.03012.31
5.3.20.0060.03611.98
5.3.10.0080.03812.10
5.3.00.0100.03512.04
5.2.170.0030.03411.34
5.2.160.0060.02811.36
5.2.150.0070.02011.36
5.2.140.0050.02811.38
5.2.130.0040.03211.26
5.2.120.0060.03111.31
5.2.110.0050.03011.43
5.2.100.0040.02411.39
5.2.90.0020.03411.34
5.2.80.0020.01911.26
5.2.70.0060.02011.28
5.2.60.0030.02711.29
5.2.50.0030.03711.27
5.2.40.0050.03311.26
5.2.30.0030.01911.29
5.2.20.0030.02911.26
5.2.10.0030.02311.26
5.2.00.0070.03111.26
5.1.60.0020.03011.26
5.1.50.0060.02311.26
5.1.40.0050.02411.26
5.1.30.0040.03111.26
5.1.20.0040.02711.26
5.1.10.0020.02711.26
5.1.00.0010.02011.26
5.0.50.0020.01811.26
5.0.40.0050.01611.26
5.0.30.0060.03011.26
5.0.20.0030.02411.26
5.0.10.0030.01811.26
5.0.00.0030.02911.26
4.4.90.0000.01911.26
4.4.80.0030.01011.26
4.4.70.0050.01711.26
4.4.60.0050.01711.26
4.4.50.0040.01311.26
4.4.40.0000.02411.26
4.4.30.0000.02211.26
4.4.20.0030.01811.26
4.4.10.0070.00811.26
4.4.00.0000.03311.26
4.3.110.0050.01811.26
4.3.100.0020.01711.26
4.3.90.0020.02011.26
4.3.80.0020.02411.26
4.3.70.0030.01811.26
4.3.60.0020.01711.26
4.3.50.0010.02011.26
4.3.40.0070.02211.26
4.3.30.0040.01811.26
4.3.20.0030.01011.26
4.3.10.0030.01311.26
4.3.00.0000.01511.26

preferences:
40.3 ms | 401 KiB | 5 Q