3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A implements Serializable { public function serialize() { $that = $this; return serialize($that); } public function unserialize($serialized) { } private $a = "a"; protected $b = "b"; public $c = "c"; } var_dump(serialize(new A()));

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)
8.3.60.0030.01516.88
8.3.50.0080.00922.12
8.3.40.0120.00918.71
8.3.30.0070.00719.04
8.3.20.0040.00420.12
8.3.10.0000.00723.70
8.3.00.0050.00319.38
8.2.180.0120.00318.41
8.2.170.0170.00022.96
8.2.160.0100.00320.27
8.2.150.0050.00224.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0000.00722.06
8.2.110.0090.00322.14
8.2.100.0040.00817.84
8.2.90.0060.00317.73
8.2.80.0040.00417.97
8.2.70.0080.00017.93
8.2.60.0030.00518.03
8.2.50.0050.00518.10
8.2.40.0050.00322.15
8.2.30.0040.00419.66
8.2.20.0000.00717.75
8.2.10.0040.00419.77
8.2.00.0070.00417.69
8.1.280.0110.00625.92
8.1.270.0060.00323.85
8.1.260.0060.00326.35
8.1.250.0080.00028.09
8.1.240.0060.00323.84
8.1.230.0080.00320.93
8.1.220.0040.00417.77
8.1.210.0030.00718.77
8.1.200.0030.00617.35
8.1.190.0030.00517.23
8.1.180.0050.00318.10
8.1.170.0040.00418.49
8.1.160.0040.00422.06
8.1.150.0000.00818.69
8.1.140.0040.00417.45
8.1.130.0030.00317.93
8.1.120.0000.00717.32
8.1.110.0040.00417.30
8.1.100.0000.00717.45
8.1.90.0050.00317.48
8.1.80.0060.00317.43
8.1.70.0040.00417.43
8.1.60.0040.00417.54
8.1.50.0090.00017.47
8.1.40.0030.00517.45
8.1.30.0000.00817.57
8.1.20.0040.00417.56
8.1.10.0030.00517.53
8.1.00.0000.00817.50
8.0.300.0040.00419.60
8.0.290.0070.00016.88
8.0.280.0030.00318.37
8.0.270.0030.00317.34
8.0.260.0070.00017.26
8.0.250.0000.00716.96
8.0.240.0110.00016.91
8.0.230.0030.00316.97
8.0.220.0050.00216.89
8.0.210.0030.00316.93
8.0.200.0070.00016.88
8.0.190.0040.00416.93
8.0.180.0000.00816.79
8.0.170.0050.00316.81
8.0.160.0070.00016.84
8.0.150.0050.00216.73
8.0.140.0000.00716.91
8.0.130.0030.00313.26
8.0.120.0050.00316.81
8.0.110.0040.00416.77
8.0.100.0000.00716.74
8.0.90.0020.00516.85
8.0.80.0040.01116.86
8.0.70.0070.00016.79
8.0.60.0030.00516.86
8.0.50.0040.00417.01
8.0.30.0130.00716.89
8.0.20.0040.01317.40
8.0.10.0040.00417.06
8.0.00.0110.00816.80
7.4.330.0030.00315.00
7.4.320.0030.00316.61
7.4.300.0000.00616.52
7.4.290.0000.00616.57
7.4.280.0000.00716.51
7.4.270.0000.00716.52
7.4.260.0030.00316.39
7.4.250.0000.00816.57
7.4.240.0030.00316.48
7.4.230.0040.00416.59
7.4.220.0120.00916.57
7.4.210.0070.00816.56
7.4.200.0030.00516.54
7.4.190.0030.00316.55
7.4.160.0100.00616.50
7.4.150.0040.01317.40
7.4.140.0110.01017.86
7.4.130.0100.01016.51
7.4.120.0090.00816.45
7.4.110.0060.01016.55
7.4.100.0140.01016.51
7.4.90.0070.01016.45
7.4.80.0170.00319.39
7.4.70.0100.00716.58
7.4.60.0100.00716.30
7.4.50.0080.00016.57
7.4.40.0040.01916.20
7.4.30.0050.01016.60
7.4.00.0090.00614.86
7.3.330.0000.00613.23
7.3.320.0060.00013.17
7.3.310.0070.00016.24
7.3.300.0000.00616.25
7.3.290.0030.01416.30
7.3.280.0070.00916.21
7.3.270.0100.00717.40
7.3.260.0110.00716.23
7.3.250.0100.00616.43
7.3.240.0000.01716.43
7.3.230.0060.01216.39
7.3.210.0130.00316.30
7.3.200.0100.01319.39
7.3.190.0100.00616.51
7.3.180.0090.00916.10
7.3.170.0030.01316.42
7.3.160.0030.01316.43
7.3.120.0030.01414.54
7.3.10.0090.00916.33
7.3.00.0100.00316.14
7.2.330.0030.01516.20
7.2.320.0120.00616.58
7.2.310.0110.01116.54
7.2.300.0070.01016.71
7.2.290.0070.01016.34
7.2.130.0030.01016.58
7.2.120.0060.00916.86
7.2.110.0070.00316.96
7.2.100.0060.01016.68
7.2.90.0040.01616.68
7.2.80.0230.00416.59
7.2.70.0110.01416.98
7.2.60.0090.00616.73
7.2.50.0140.00616.57
7.2.40.0120.00816.47
7.2.30.0170.01016.91
7.2.20.0090.00916.27
7.2.10.0130.00316.55
7.2.00.0080.00817.92
7.1.250.0030.01015.60
7.1.240.0100.00615.76
7.1.230.0080.00615.55
7.1.220.0110.00715.90
7.1.210.0080.00815.59
7.1.200.0050.00915.76
7.1.190.0090.01215.84
7.1.180.0120.00815.53
7.1.170.0180.00515.50
7.1.160.0120.01215.81
7.1.150.0100.01015.38
7.1.140.0090.01315.75
7.1.130.0090.00815.73
7.1.120.0180.00615.64
7.1.110.0220.00015.68
7.1.100.0070.01216.88
7.1.90.0100.01015.79
7.1.80.0170.00315.45
7.1.70.0100.00516.44
7.1.60.0070.00916.35
7.1.50.0080.01316.15
7.1.40.0070.00715.10
7.1.30.0150.01215.81
7.1.20.0160.00815.49
7.1.10.0140.00615.61
7.1.00.0080.04319.10
7.0.330.0120.00015.36
7.0.320.0000.01015.02
7.0.310.0150.00315.20
7.0.300.0130.01015.20
7.0.290.0100.01015.18
7.0.280.0090.00915.32
7.0.270.0100.01014.92
7.0.260.0000.01515.00
7.0.250.0120.00615.30
7.0.240.0080.01115.37
7.0.230.0060.00914.89
7.0.220.0160.00015.39
7.0.210.0080.00415.55
7.0.200.0140.00315.89
7.0.190.0070.00715.11
7.0.180.0090.00615.26
7.0.170.0120.00315.46
7.0.160.0060.01315.43
7.0.150.0160.00015.46
7.0.140.0050.04018.64
7.0.130.0100.00315.27
7.0.120.0070.00715.16
7.0.110.0070.00415.30
7.0.100.0070.00715.39
7.0.90.0100.00315.27
7.0.80.0030.01015.10
7.0.70.0100.00315.16
7.0.60.0020.02817.41
7.0.50.0060.02316.41
7.0.40.0070.04516.56
7.0.30.0200.03816.52
7.0.20.0170.03916.53
7.0.10.0050.02516.60
7.0.00.0090.03016.52
5.6.380.0070.01014.43
5.6.370.0060.00814.33
5.6.360.0040.01214.43
5.6.350.0180.00314.53
5.6.340.0100.01014.50
5.6.330.0050.01014.29
5.6.320.0120.00614.57
5.6.310.0070.00714.14
5.6.300.0060.00813.86
5.6.290.0070.00713.86
5.6.280.0070.03917.48
5.6.270.0060.01413.93
5.6.260.0040.01114.34
5.6.250.0000.01614.38
5.6.240.0130.00013.94
5.6.230.0070.00713.97
5.6.220.0080.00414.16
5.6.210.0070.04517.41
5.6.200.0070.03916.06
5.6.190.0090.02317.31
5.6.180.0190.02517.25
5.6.170.0170.02917.23
5.6.160.0130.02217.40
5.6.150.0080.03316.11
5.6.140.0110.02815.90
5.6.130.0080.04315.97
5.6.120.0090.02317.55
5.6.110.0140.04017.50
5.6.100.0130.04017.69
5.6.90.0130.04517.66
5.6.80.0120.03317.21
5.6.70.0160.00214.39
5.6.60.0180.00414.22
5.6.50.0110.00914.00
5.6.40.0030.01314.16
5.6.30.0130.00314.05
5.6.20.0130.00313.83
5.6.10.0100.00313.90
5.6.00.0000.00813.91
5.5.380.0050.00511.13
5.5.370.0040.00410.92
5.5.360.0040.00411.05
5.5.350.0150.01715.64
5.5.340.0050.03614.49
5.5.330.0040.02315.74
5.5.320.0150.04215.61
5.5.310.0130.02515.53
5.5.300.0050.03314.45
5.5.290.0090.04114.31
5.5.280.0030.02816.05
5.5.270.0100.03716.00
5.5.260.0030.03216.06
5.5.250.0100.03015.72
5.5.240.0080.02915.47
5.5.230.0030.00610.84
5.5.220.0060.00610.98
5.5.210.0030.00811.18
5.5.200.0060.00611.11
5.5.190.0000.01111.02
5.5.180.0060.00611.21
5.5.170.0030.00610.69
5.5.160.0030.00911.09
5.5.150.0030.00610.76
5.5.140.0070.00010.82
5.5.130.0000.01210.96
5.5.120.0100.00210.87
5.5.110.0100.00011.00
5.5.100.0090.00010.49
5.5.90.0030.00910.85
5.5.80.0070.00310.59
5.5.70.0000.00810.62
5.5.60.0000.00611.08
5.5.50.0100.00311.07
5.5.40.0050.00210.65
5.5.30.0030.00610.70
5.5.20.0090.00610.66
5.5.10.0000.00610.95
5.5.00.0060.00610.70
5.4.450.0350.03315.18
5.4.440.0350.03015.20
5.4.430.0360.02915.17
5.4.420.0370.02715.17
5.4.410.0330.04215.06
5.4.400.0270.03014.94
5.4.390.0300.02814.98
5.4.380.0200.02814.84
5.4.370.0170.02914.82
5.4.360.0150.02814.53
5.4.350.0180.03114.79
5.4.340.0180.02714.72
5.4.330.0030.00610.80
5.4.320.0080.02011.60
5.4.310.0040.02311.58
5.4.300.0060.02011.66
5.4.290.0040.02611.76
5.4.280.0040.02511.67
5.4.270.0050.03011.67
5.4.260.0110.04011.69
5.4.250.0050.02811.64
5.4.240.0040.03211.59
5.4.230.0070.03611.50
5.4.220.0060.02811.65
5.4.210.0040.02411.54
5.4.200.0080.02611.60
5.4.190.0040.02211.57
5.4.180.0050.02211.54
5.4.170.0100.01711.64
5.4.160.0080.02611.53
5.4.150.0140.03411.65
5.4.140.0050.03611.44
5.4.130.0140.03211.51
5.4.120.0040.02211.55
5.4.110.0050.02511.45
5.4.100.0040.02511.41
5.4.90.0040.03211.43
5.4.80.0050.02111.34
5.4.70.0080.02611.46
5.4.60.0080.01811.25
5.4.50.0020.02611.38
5.4.40.0060.02111.40
5.4.30.0080.02011.36
5.4.20.0040.02411.50
5.4.10.0030.02311.56
5.4.00.0060.02311.22
5.3.290.0090.02423.23
5.3.280.0110.04222.96
5.3.270.0090.02722.85
5.3.260.0100.03823.02
5.3.250.0100.03523.04
5.3.240.0140.03122.86
5.3.230.0120.04622.99
5.3.220.0180.03822.79
5.3.210.0150.03822.78
5.3.200.0180.03622.76
5.3.190.0150.04122.82
5.3.180.0150.03222.75
5.3.170.0160.03122.76
5.3.160.0100.04122.79
5.3.150.0120.04622.76
5.3.140.0110.03022.90
5.3.130.0100.02422.86
5.3.120.0100.02822.73
5.3.110.0120.02522.83
5.3.100.0150.03522.63
5.3.90.0100.03422.66
5.3.80.0120.02622.50
5.3.70.0120.02322.51
5.3.60.0120.02222.42
5.3.50.0120.02422.48
5.3.40.0120.03422.42
5.3.30.0160.02022.48
5.3.20.0130.02622.25
5.3.10.0080.03322.14
5.3.00.0110.02722.35
5.2.170.0100.03120.65
5.2.160.0100.02420.64
5.2.150.0090.01920.61
5.2.140.0060.02320.57
5.2.130.0050.02320.58
5.2.120.0100.01820.61
5.2.110.0050.02420.58
5.2.100.0090.02620.63
5.2.90.0120.01820.42
5.2.80.0140.03620.55
5.2.70.0070.02520.56
5.2.60.0060.02620.47
5.2.50.0120.02420.36
5.2.40.0090.02220.52
5.2.30.0100.02320.38
5.2.20.0090.02320.50
5.2.10.0130.02520.45
5.2.00.0140.04020.23
5.1.60.0130.01820.19
5.1.50.0100.02220.16
5.1.40.0070.02720.21
5.1.30.0100.02120.60
5.1.20.0120.01920.43
5.1.10.0080.02120.40
5.1.00.0080.02220.32
5.0.50.0020.0148.02
5.0.40.0040.0117.95
5.0.30.0040.0187.86
5.0.20.0030.0137.84
5.0.10.0040.0127.83
5.0.00.0030.0227.83
4.4.90.0010.0167.09
4.4.80.0020.0127.08
4.4.70.0010.0127.08
4.4.60.0020.0137.08
4.4.50.0030.0137.08
4.4.40.0000.0187.05
4.4.30.0040.0077.08
4.4.20.0020.0107.12
4.4.10.0030.0107.12
4.4.00.0030.0137.08
4.3.110.0030.0107.04
4.3.100.0040.0087.03
4.3.90.0020.0137.02
4.3.80.0030.0146.99
4.3.70.0030.0117.02
4.3.60.0020.0127.01
4.3.50.0020.0127.01
4.3.40.0030.0156.97
4.3.30.0020.0116.41
4.3.20.0040.0136.41
4.3.10.0020.0136.41
4.3.00.0050.0109.97

preferences:
48.41 ms | 401 KiB | 5 Q