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("temp1"); $n[1] = new test("temp2"); 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)
8.3.40.0100.01018.77
8.3.30.0130.00019.99
8.3.20.0000.00818.94
8.3.10.0040.00421.05
8.3.00.0040.00423.64
8.2.170.0140.00719.09
8.2.160.0100.00322.96
8.2.150.0030.00624.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0140.00419.82
8.2.110.0000.01022.31
8.2.100.0040.00818.03
8.2.90.0050.00318.03
8.2.80.0040.00419.30
8.2.70.0000.00917.75
8.2.60.0090.00018.05
8.2.50.0030.00618.07
8.2.40.0030.00618.22
8.2.30.0040.00419.36
8.2.20.0050.00217.81
8.2.10.0050.00317.68
8.2.00.0030.00617.68
8.1.270.0020.00523.99
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00619.28
8.1.230.0040.00721.03
8.1.220.0080.00017.74
8.1.210.0040.00818.77
8.1.200.0040.00417.35
8.1.190.0050.00317.53
8.1.180.0050.00318.10
8.1.170.0000.00818.59
8.1.160.0030.00518.88
8.1.150.0050.00218.70
8.1.140.0000.00717.41
8.1.130.0080.00017.83
8.1.120.0000.00717.54
8.1.110.0050.00217.35
8.1.100.0040.00417.48
8.1.90.0080.00017.53
8.1.80.0000.00717.46
8.1.70.0070.00017.43
8.1.60.0080.00017.50
8.1.50.0080.00017.48
8.1.40.0040.00417.46
8.1.30.0040.00417.57
8.1.20.0040.00417.54
8.1.10.0040.00417.66
8.1.00.0060.00317.42
8.0.300.0000.00720.07
8.0.290.0040.00416.75
8.0.280.0040.00418.39
8.0.270.0050.00316.99
8.0.260.0050.00316.89
8.0.250.0000.00717.01
8.0.240.0000.00817.08
8.0.230.0040.00416.93
8.0.220.0000.00717.01
8.0.210.0000.00716.98
8.0.200.0040.00416.98
8.0.190.0000.00717.03
8.0.180.0000.00816.89
8.0.170.0040.00416.98
8.0.160.0070.00017.00
8.0.150.0000.00716.87
8.0.140.0060.00316.90
8.0.130.0000.00613.41
8.0.120.0000.00716.88
8.0.110.0040.00416.84
8.0.100.0080.00016.99
8.0.90.0080.00016.96
8.0.80.0000.01516.98
8.0.70.0000.00816.83
8.0.60.0040.00417.03
8.0.50.0040.00416.91
8.0.30.0130.00617.15
8.0.20.0130.00517.40
8.0.10.0040.00417.05
8.0.00.0120.00816.88
7.4.330.0050.00016.69
7.4.320.0000.00616.63
7.4.300.0070.00016.63
7.4.290.0070.00016.51
7.4.280.0040.00416.56
7.4.270.0030.00316.60
7.4.260.0060.00013.33
7.4.250.0050.00316.36
7.4.240.0030.00516.56
7.4.230.0030.00316.61
7.4.220.0120.00816.46
7.4.210.0090.00716.54
7.4.200.0000.00716.63
7.4.190.0030.00316.41
7.4.160.0080.00816.53
7.4.150.0040.01317.40
7.4.140.0100.00617.86
7.4.130.0090.01016.49
7.4.120.0110.00616.59
7.4.110.0110.00616.61
7.4.100.0100.00716.45
7.4.90.0120.00616.70
7.4.80.0060.01819.39
7.4.70.0060.01116.43
7.4.60.0080.00816.46
7.4.50.0080.00016.36
7.4.40.0100.00622.77
7.4.30.0110.00516.40
7.4.00.0070.01014.80
7.3.330.0050.00013.41
7.3.320.0000.00513.29
7.3.310.0030.00316.47
7.3.300.0030.00316.45
7.3.290.0070.00716.37
7.3.280.0050.01016.47
7.3.270.0100.00717.40
7.3.260.0130.00718.24
7.3.250.0070.01116.46
7.3.240.0140.00316.68
7.3.230.0130.00416.48
7.3.210.0100.00716.49
7.3.200.0090.00919.39
7.3.190.0030.02016.44
7.3.180.0030.01316.60
7.3.170.0100.00716.53
7.3.160.0070.01016.38
7.3.120.0050.01214.90
7.3.110.0070.00714.53
7.3.100.0110.00414.76
7.3.90.0040.00814.89
7.3.80.0040.01414.86
7.3.70.0030.01314.76
7.3.60.0070.00714.87
7.3.50.0060.00314.68
7.3.40.0060.00614.74
7.3.30.0100.00314.82
7.3.20.0060.00916.82
7.3.10.0040.01016.66
7.3.00.0080.00816.47
7.2.330.0260.02016.61
7.2.320.0100.01016.82
7.2.310.0080.00916.73
7.2.300.0070.01016.83
7.2.290.0060.01216.80
7.2.250.0070.01014.77
7.2.240.0100.01014.90
7.2.230.0070.00714.82
7.2.220.0090.00915.23
7.2.210.0040.01114.90
7.2.200.0040.01514.97
7.2.190.0030.00615.04
7.2.180.0100.00315.12
7.2.170.0090.00315.01
7.2.160.0060.01215.00
7.2.150.0060.01316.84
7.2.140.0000.01416.98
7.2.130.0030.01516.78
7.2.120.0050.00716.66
7.2.110.0060.00816.76
7.2.100.0070.00516.66
7.2.90.0080.00616.57
7.2.80.0060.00716.76
7.2.70.0070.00616.88
7.2.60.0060.00716.81
7.2.50.0070.00516.87
7.2.40.0060.00816.76
7.2.30.0040.00916.87
7.2.20.0040.00916.85
7.2.10.0040.00816.72
7.2.00.0050.00917.32
7.1.330.0030.01015.91
7.1.320.0000.01515.80
7.1.310.0070.00715.66
7.1.300.0030.01015.82
7.1.290.0000.01215.86
7.1.280.0060.00615.88
7.1.270.0070.01015.56
7.1.260.0060.00316.07
7.1.250.0060.00815.79
7.1.240.0020.01215.81
7.1.230.0060.00515.90
7.1.220.0050.00615.61
7.1.210.0090.00215.86
7.1.200.0060.00615.70
7.1.190.0030.01015.82
7.1.180.0030.00815.68
7.1.170.0080.00515.60
7.1.160.0050.00915.78
7.1.150.0070.00515.75
7.1.140.0070.00715.66
7.1.130.0050.01015.93
7.1.120.0030.00815.94
7.1.110.0060.00515.80
7.1.100.0060.00816.62
7.1.90.0060.00815.77
7.1.80.0040.01115.69
7.1.70.0080.00416.17
7.1.60.0020.01516.90
7.1.50.0070.00916.08
7.1.40.0020.01115.68
7.1.30.0000.01415.61
7.1.20.0030.00615.70
7.1.10.0030.00815.89
7.1.00.0020.02717.89
7.0.330.0070.00715.44
7.0.320.0030.01015.40
7.0.310.0030.00915.30
7.0.300.0020.01015.37
7.0.290.0020.01115.36
7.0.280.0030.00915.42
7.0.270.0050.01115.32
7.0.260.0050.00615.47
7.0.250.0070.00715.45
7.0.240.0030.01115.40
7.0.230.0080.00515.52
7.0.220.0070.00515.37
7.0.210.0050.00715.40
7.0.200.0060.00515.83
7.0.190.0040.00415.46
7.0.180.0050.00715.32
7.0.170.0060.00515.36
7.0.160.0070.00615.29
7.0.150.0070.00715.38
7.0.140.0060.02617.54
7.0.130.0060.00415.33
7.0.120.0070.00315.42
7.0.110.0050.00715.38
7.0.100.0040.00715.40
7.0.90.0020.01115.44
7.0.80.0040.02316.84
7.0.70.0050.03016.97
7.0.60.0030.03217.02
7.0.50.0090.02617.05
7.0.40.0030.02615.68
7.0.30.0050.03115.67
7.0.20.0080.02915.55
7.0.10.0040.02415.67
7.0.00.0050.02215.71
5.6.400.0030.01414.57
5.6.390.0030.00914.43
5.6.380.0060.00514.54
5.6.370.0060.00514.72
5.6.360.0050.00514.41
5.6.350.0080.00314.49
5.6.340.0030.00814.46
5.6.330.0030.00914.65
5.6.320.0060.00614.37
5.6.310.0030.00914.42
5.6.300.0100.00214.40
5.6.290.0060.00514.52
5.6.280.0060.02616.61
5.6.270.0060.00714.50
5.6.260.0060.00814.47
5.6.250.0070.00314.48
5.6.240.0070.00514.32
5.6.230.0080.02416.55
5.6.220.0100.01816.50
5.6.210.0060.02916.50
5.6.200.0080.03016.65
5.6.190.0080.01716.63
5.6.180.0030.03316.55
5.6.170.0010.02916.75
5.6.160.0090.03016.70
5.6.150.0050.03016.58
5.6.140.0040.02716.56
5.6.130.0070.01916.56
5.6.120.0100.02416.67
5.6.110.0090.03316.62
5.6.100.0010.02616.64
5.6.90.0070.02716.57
5.6.80.0090.03016.39
5.6.70.0070.03216.41
5.6.60.0060.03216.55
5.6.50.0070.02716.37
5.6.40.0080.03316.45
5.6.30.0100.02716.50
5.6.20.0040.03216.41
5.6.10.0120.02816.39
5.6.00.0050.02416.40
5.5.380.0050.00512.74
5.5.370.0060.02815.43
5.5.360.0100.02515.44
5.5.350.0060.02915.41
5.5.340.0060.03015.61
5.5.330.0070.03015.68
5.5.320.0050.02915.68
5.5.310.0070.02915.53
5.5.300.0030.03115.64
5.5.290.0090.03115.53
5.5.280.0040.03315.58
5.5.270.0050.02515.57
5.5.260.0060.03315.51
5.5.250.0040.03215.47
5.5.240.0030.03115.35
5.5.230.0040.03215.24
5.5.220.0050.01815.32
5.5.210.0050.01915.43
5.5.200.0080.01715.30
5.5.190.0040.02415.43
5.5.180.0060.02615.34
5.5.170.0070.00814.31
5.5.160.0050.02015.24
5.5.150.0080.02615.24
5.5.140.0050.03015.26
5.5.130.0040.02315.24
5.5.120.0030.03315.38
5.5.110.0080.02515.32
5.5.100.0060.02915.27
5.5.90.0080.02615.15
5.5.80.0060.02015.29
5.5.70.0080.03015.17
5.5.60.0070.02715.26
5.5.50.0050.02515.25
5.5.40.0060.01915.20
5.5.30.0020.02415.20
5.5.20.0100.02315.20
5.5.10.0090.01715.18
5.5.00.0070.03015.22
5.4.450.0060.02914.01
5.4.440.0050.03013.87
5.4.430.0050.01713.81
5.4.420.0040.03013.92
5.4.410.0070.01914.09
5.4.400.0040.03113.86
5.4.390.0060.02913.81
5.4.380.0040.03113.72
5.4.370.0040.02713.89
5.4.360.0040.03313.90
5.4.350.0030.02613.73
5.4.340.0020.02713.93
5.4.330.0020.00711.06
5.4.320.0050.01713.89
5.4.310.0050.02413.85
5.4.300.0080.02513.82
5.4.290.0070.03013.85
5.4.280.0060.02713.88
5.4.270.0070.02713.82
5.4.260.0070.01313.78
5.4.250.0070.02513.83
5.4.240.0060.03013.73
5.4.230.0050.02813.88
5.4.220.0070.02913.63
5.4.210.0050.01613.93
5.4.200.0050.02213.83
5.4.190.0040.02013.90
5.4.180.0070.02913.79
5.4.170.0070.02613.71
5.4.160.0100.02213.87
5.4.150.0100.02313.72
5.4.140.0040.03012.85
5.4.130.0040.03113.01
5.4.120.0030.02712.94
5.4.110.0070.02812.98
5.4.100.0080.02612.96
5.4.90.0050.02912.94
5.4.80.0060.02212.89
5.4.70.0020.02912.97
5.4.60.0080.02412.91
5.4.50.0010.03212.92
5.4.40.0070.02312.98
5.4.30.0040.03112.97
5.4.20.0020.01912.97
5.4.10.0090.02612.99
5.4.00.0090.02112.72
5.3.290.0070.02512.17
5.3.280.0040.03012.13
5.3.270.0070.02112.16
5.3.260.0080.02312.16
5.3.250.0030.03212.13
5.3.240.0060.02712.16
5.3.230.0070.02612.18
5.3.220.0010.03212.15
5.3.210.0070.02312.17
5.3.200.0020.02212.15
5.3.190.0050.01912.17
5.3.180.0050.02912.13
5.3.170.0030.02012.15
5.3.160.0070.02712.17
5.3.150.0070.02612.17
5.3.140.0060.02612.12
5.3.130.0050.02812.12
5.3.120.0080.01912.16
5.3.110.0110.02312.19
5.3.100.0030.02811.97
5.3.90.0050.02112.01
5.3.80.0070.02811.96
5.3.70.0050.02712.00
5.3.60.0070.01512.00
5.3.50.0040.01811.96
5.3.40.0070.01711.96
5.3.30.0080.02311.90
5.3.20.0060.02511.83
5.3.10.0040.01811.81
5.3.00.0040.03111.81
5.2.170.0040.01912.30
5.2.160.0040.03512.30
5.2.150.0070.03112.30
5.2.140.0030.03312.30
5.2.130.0030.02312.30
5.2.120.0070.01712.30
5.2.110.0040.03412.30
5.2.100.0060.02212.30
5.2.90.0010.01912.30
5.2.80.0030.02812.30
5.2.70.0050.03312.30
5.2.60.0010.03312.30
5.2.50.0090.01812.30
5.2.40.0080.02012.30
5.2.30.0050.03012.30
5.2.20.0000.01912.30
5.2.10.0030.01712.30
5.2.00.0030.01412.30
5.1.60.0040.01312.30
5.1.50.0070.02612.30
5.1.40.0030.02412.30
5.1.30.0000.01612.30
5.1.20.0040.01312.30
5.1.10.0050.02312.30
5.1.00.0080.01312.30
5.0.50.0030.02112.30
5.0.40.0050.01212.30
5.0.30.0000.02012.30
5.0.20.0060.02212.30
5.0.10.0020.01312.30
5.0.00.0050.01312.30
4.4.90.0010.01912.30
4.4.80.0030.01012.30
4.4.70.0040.00912.30
4.4.60.0010.00912.30
4.4.50.0030.01212.30
4.4.40.0000.01612.30
4.4.30.0030.00912.30
4.4.20.0010.01012.30
4.4.10.0010.01112.30
4.4.00.0000.01612.30
4.3.110.0020.01912.30
4.3.100.0000.01712.30
4.3.90.0010.01012.30
4.3.80.0040.01412.30
4.3.70.0040.01012.30
4.3.60.0030.01512.30
4.3.50.0000.01112.30
4.3.40.0020.01512.30
4.3.30.0010.01012.30
4.3.20.0010.00912.30
4.3.10.0000.01212.30
4.3.00.0020.01012.30

preferences:
31.66 ms | 400 KiB | 5 Q