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[] = new test("temp1"); $n[] = new test("temp2"); $n[] = new test("temp3"); $n[] = new test("temp4"); $n[] = new test("temp5"); $n[] = new test("temp6"); $n[] = new test("temp7"); $n[] = new test("temp8"); $n[] = new test("temp9"); 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)
8.3.60.0150.00416.88
8.3.50.0100.00617.58
8.3.40.0120.00318.71
8.3.30.0060.00818.67
8.3.20.0050.00518.69
8.3.10.0060.00320.61
8.3.00.0060.00319.38
8.2.180.0180.00416.88
8.2.170.0070.00722.96
8.2.160.0130.00321.05
8.2.150.0040.00425.66
8.2.140.0030.00624.66
8.2.130.0000.00726.16
8.2.120.0040.00421.14
8.2.110.0090.00020.53
8.2.100.0090.00317.89
8.2.90.0060.00319.52
8.2.80.0000.00719.39
8.2.70.0000.01317.24
8.2.60.0080.00017.93
8.2.50.0060.00318.07
8.2.40.0000.00818.11
8.2.30.0050.00318.22
8.2.20.0040.00417.67
8.2.10.0050.00317.76
8.2.00.0060.00317.82
8.1.280.0180.00425.92
8.1.270.0080.00024.66
8.1.260.0080.00026.35
8.1.250.0110.00428.09
8.1.240.0100.00019.08
8.1.230.0080.00419.12
8.1.220.0060.00317.74
8.1.210.0060.00318.77
8.1.200.0060.00317.35
8.1.190.0000.00817.55
8.1.180.0040.00418.10
8.1.170.0060.00318.91
8.1.160.0030.00518.77
8.1.150.0000.00818.51
8.1.140.0040.00417.52
8.1.130.0000.00717.78
8.1.120.0050.00217.38
8.1.110.0040.00417.32
8.1.100.0000.00817.47
8.1.90.0030.00317.45
8.1.80.0000.00717.49
8.1.70.0000.00717.50
8.1.60.0050.00217.59
8.1.50.0050.00317.53
8.1.40.0080.00017.45
8.1.30.0040.00417.49
8.1.20.0040.00417.68
8.1.10.0030.00517.50
8.1.00.0110.00017.52
8.0.300.0000.00718.77
8.0.290.0000.00816.75
8.0.280.0000.00718.46
8.0.270.0000.00717.13
8.0.260.0030.00316.89
8.0.250.0070.00017.04
8.0.240.0070.00316.93
8.0.230.0080.00017.09
8.0.220.0050.00217.00
8.0.210.0040.00417.00
8.0.200.0040.00416.94
8.0.190.0050.00316.96
8.0.180.0040.00416.92
8.0.170.0000.00816.98
8.0.160.0040.00417.04
8.0.150.0000.00916.94
8.0.140.0040.00416.94
8.0.130.0000.00513.33
8.0.120.0080.00016.94
8.0.110.0050.00316.88
8.0.100.0050.00216.95
8.0.90.0040.00416.79
8.0.80.0100.01116.99
8.0.70.0060.00316.98
8.0.60.0040.00416.95
8.0.50.0000.00716.79
8.0.30.0140.00517.07
8.0.20.0130.00617.29
8.0.10.0030.00617.04
8.0.00.0110.00716.88
7.4.330.0050.00012.99
7.4.320.0040.00416.61
7.4.300.0000.00616.48
7.4.290.0000.00616.51
7.4.280.0040.00416.53
7.4.270.0030.00316.61
7.4.260.0000.00513.23
7.4.250.0080.00016.57
7.4.240.0020.00516.47
7.4.230.0080.00016.48
7.4.220.0040.01416.53
7.4.210.0080.00716.62
7.4.200.0040.00416.34
7.4.190.0070.00016.62
7.4.160.0030.01316.53
7.4.150.0160.00316.48
7.4.140.0110.00616.55
7.4.130.0050.01216.43
7.4.120.0100.00716.53
7.4.110.0150.00316.67
7.4.100.0030.01516.49
7.4.90.0140.00416.51
7.4.80.0140.00316.57
7.4.70.0090.00916.60
7.4.60.0100.00716.53
7.4.50.0040.00416.36
7.4.40.0000.01616.31
7.4.30.0100.00716.65
7.4.00.0000.01414.77
7.3.330.0070.00013.31
7.3.320.0060.00013.25
7.3.310.0040.00416.29
7.3.300.0040.00416.43
7.3.290.0030.01216.39
7.3.280.0100.00816.38
7.3.270.0170.00716.52
7.3.260.0090.00916.55
7.3.250.0090.00916.54
7.3.240.0080.00816.27
7.3.230.0140.00316.62
7.3.210.0060.01116.47
7.3.200.0120.00919.39
7.3.190.0160.00616.63
7.3.180.0100.01016.48
7.3.170.0100.01016.60
7.3.160.0130.00316.58
7.3.120.0070.00714.99
7.2.330.0100.00716.44
7.2.320.0120.00916.74
7.2.310.0110.01216.71
7.2.300.0170.00716.78
7.2.290.0030.01316.69
7.2.80.0060.00616.86
7.2.60.0110.00416.76
7.2.00.0040.00819.50
7.1.200.0070.00715.46
7.1.100.0030.01318.13
7.1.70.0000.00717.16
7.1.60.0080.00819.40
7.1.50.0100.01416.63
7.1.00.0030.05322.36
7.0.200.0090.00616.89
7.0.140.0030.07722.01
7.0.120.0030.07322.04
7.0.110.0030.04021.73
7.0.100.0070.03321.84
7.0.90.0030.04021.73
7.0.80.0070.03721.83
7.0.70.0070.03321.64
7.0.60.0000.04321.78
7.0.50.0000.04322.12
7.0.40.0030.03320.11
7.0.30.0030.04019.94
7.0.20.0030.07319.97
7.0.10.0000.04719.90
7.0.00.0030.04020.20
5.6.280.0130.05721.03
5.6.260.0000.04320.64
5.6.250.0030.03720.68
5.6.240.0030.04020.66
5.6.230.0030.04020.63
5.6.220.0070.03720.51
5.6.210.0000.04320.64
5.6.200.0030.03721.11
5.6.190.0030.03321.18
5.6.180.0070.03321.04
5.6.170.0000.04020.91
5.6.160.0000.04021.24
5.6.150.0030.05320.91
5.6.140.0030.03721.00
5.6.130.0100.08021.07
5.6.120.0100.08021.18
5.6.110.0070.08020.98
5.6.100.0030.07721.16
5.6.90.0070.06321.08
5.6.80.0030.04320.28
5.6.70.0030.07720.47
5.6.60.0070.03020.47
5.6.50.0070.07320.49
5.6.40.0030.04320.44
5.6.30.0030.07720.57
5.6.20.0070.07020.46
5.6.10.0100.07320.24
5.6.00.0100.07020.48
5.5.380.0000.04720.40
5.5.370.0030.03020.50
5.5.360.0000.03320.30
5.5.350.0000.03720.40
5.5.340.0030.04020.69
5.5.330.0030.04020.78
5.5.320.0030.04720.67
5.5.310.0030.03720.78
5.5.300.0000.04320.73
5.5.290.0030.08720.96
5.5.280.0000.08721.00
5.5.270.0130.07020.65
5.5.260.0030.08720.97
5.5.250.0030.04320.66
5.5.240.0070.06720.23
5.5.230.0030.06320.23
5.5.220.0030.07720.15
5.5.210.0000.03720.19
5.5.200.0070.07720.02
5.5.190.0130.04720.13
5.5.180.0070.09020.04
5.5.160.0030.04320.13
5.5.150.0070.07320.09
5.5.140.0030.07320.18
5.5.130.0070.07020.22
5.5.120.0070.05720.05
5.5.110.0030.06320.21
5.5.100.0030.07720.25
5.5.90.0100.06320.19
5.5.80.0070.04019.95
5.5.70.0030.06319.96
5.5.60.0170.06320.16
5.5.50.0030.04720.00
5.5.40.0030.08020.20
5.5.30.0030.08020.14
5.5.20.0030.07320.19
5.5.10.0070.08319.89
5.5.00.0000.08320.20
5.4.450.0100.05319.28
5.4.440.0030.07719.36
5.4.430.0100.07319.58
5.4.420.0030.08319.31
5.4.410.0070.07719.38
5.4.400.0030.07719.00
5.4.390.0070.07719.00
5.4.380.0000.07719.34
5.4.370.0000.06018.98
5.4.360.0070.07019.25
5.4.350.0100.07018.98
5.4.340.0070.04019.37
5.4.320.0030.04719.24
5.4.310.0030.04319.03
5.4.300.0170.03319.03
5.4.290.0070.07018.98
5.4.280.0000.07318.99
5.4.270.0030.05319.06
5.4.260.0070.04718.93
5.4.250.0100.07319.00
5.4.240.0030.06019.17
5.4.230.0030.03719.17
5.4.220.0000.08018.98
5.4.210.0030.07319.18
5.4.200.0000.07319.08
5.4.190.0100.07019.14
5.4.180.0070.07719.13
5.4.170.0030.04319.32
5.4.160.0000.06718.96
5.4.150.0030.08319.15
5.4.140.0070.05016.48
5.4.130.0030.07016.30
5.4.120.0130.06716.53
5.4.110.0030.04016.52
5.4.100.0070.06716.36
5.4.90.0030.07316.47
5.4.80.0100.07016.52
5.4.70.0130.05316.42
5.4.60.0100.07316.52
5.4.50.0000.04016.63
5.4.40.0030.04016.59
5.4.30.0000.04016.47
5.4.20.0030.06716.38
5.4.10.0070.05716.54
5.4.00.0000.07715.95
5.3.290.0100.06714.92
5.3.280.0070.07014.63
5.3.270.0070.07314.65
5.3.260.0070.07314.66
5.3.250.0000.08014.77
5.3.240.0030.06714.65
5.3.230.0070.06714.75
5.3.220.0030.08014.57
5.3.210.0030.07314.57
5.3.200.0070.06714.72
5.3.190.0000.06014.58
5.3.180.0030.07314.54
5.3.170.0130.04314.70
5.3.160.0000.07014.59
5.3.150.0030.06014.60
5.3.140.0070.07014.72
5.3.130.0000.08014.70
5.3.120.0070.07014.56
5.3.110.0000.06014.58
5.3.100.0030.07314.09
5.3.90.0030.07314.17
5.3.80.0100.06714.04
5.3.70.0070.07314.11
5.3.60.0030.07314.02
5.3.50.0030.06714.05
5.3.40.0030.04013.94
5.3.30.0000.07014.15
5.3.20.0000.04713.72
5.3.10.0030.07013.90
5.3.00.0030.07713.51
5.2.170.0070.05711.32
5.2.160.0030.03311.32
5.2.150.0000.06311.32
5.2.140.0030.05711.32
5.2.130.0070.04311.32
5.2.120.0000.06011.32
5.2.110.0000.06011.32
5.2.100.0000.06311.32
5.2.90.0030.05711.32
5.2.80.0000.06011.32
5.2.70.0070.04311.32
5.2.60.0000.06311.32
5.2.50.0100.05311.32
5.2.40.0000.05711.32
5.2.30.0100.05711.32
5.2.20.0030.03711.32
5.2.10.0070.02711.32
5.2.00.0030.04711.32
5.1.60.0000.05311.32
5.1.50.0000.02311.32
5.1.40.0000.02311.32
5.1.30.0000.04011.32
5.1.20.0070.03711.32
5.1.10.0030.02011.32
5.1.00.0030.05011.32
5.0.50.0030.03711.32
5.0.40.0000.04311.32
5.0.30.0030.02711.32
5.0.20.0000.02311.32
5.0.10.0030.03711.32
5.0.00.0030.06311.32
4.4.90.0070.03011.32
4.4.80.0070.03011.32
4.4.70.0000.03011.32
4.4.60.0070.03011.32
4.4.50.0030.03311.32
4.4.40.0030.03011.32
4.4.30.0000.02011.32
4.4.20.0000.01711.32
4.4.10.0000.03011.32
4.4.00.0000.02711.32
4.3.110.0000.01311.32
4.3.100.0000.02011.32
4.3.90.0000.01711.32
4.3.80.0000.05311.32
4.3.70.0000.02711.32
4.3.60.0030.01011.32
4.3.50.0000.02311.32
4.3.40.0030.04711.32
4.3.30.0000.03311.32
4.3.20.0030.02711.32
4.3.10.0000.01311.32
4.3.00.0000.03011.32

preferences:
43.38 ms | 401 KiB | 5 Q