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( $x = serialize( $n ) ) ); var_dump($x);

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)
8.3.60.0040.01818.60
8.3.50.0120.00821.90
8.3.40.0110.00419.00
8.3.30.0100.00319.26
8.3.20.0060.00320.38
8.3.10.0040.00423.65
8.3.00.0070.00020.75
8.2.180.0070.00718.66
8.2.170.0140.00322.96
8.2.160.0070.00721.99
8.2.150.0000.00824.18
8.2.140.0060.00324.66
8.2.130.0080.00026.16
8.2.120.0060.00322.10
8.2.110.0080.00021.97
8.2.100.0090.00317.67
8.2.90.0040.00419.29
8.2.80.0040.00418.00
8.2.70.0040.00417.63
8.2.60.0040.00418.05
8.2.50.0080.00018.07
8.2.40.0060.00318.22
8.2.30.0040.00418.00
8.2.20.0040.00417.78
8.2.10.0020.00517.87
8.2.00.0040.00417.67
8.1.280.0070.00725.92
8.1.270.0080.00023.91
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.89
8.1.230.0080.00319.01
8.1.220.0040.00417.80
8.1.210.0050.00318.77
8.1.200.0120.00017.23
8.1.190.0100.00017.43
8.1.180.0050.00318.10
8.1.170.0040.00418.51
8.1.160.0050.00322.02
8.1.150.0000.00718.64
8.1.140.0040.00417.37
8.1.130.0030.00317.75
8.1.120.0000.00717.37
8.1.110.0040.00417.42
8.1.100.0000.00717.42
8.1.90.0000.00717.46
8.1.80.0040.00417.45
8.1.70.0000.00717.41
8.1.60.0060.00317.52
8.1.50.0030.00617.54
8.1.40.0040.00417.53
8.1.30.0000.00817.60
8.1.20.0000.00817.64
8.1.10.0060.00317.61
8.1.00.0050.00317.52
8.0.300.0040.00418.77
8.0.290.0080.00017.18
8.0.280.0030.00318.43
8.0.270.0000.00717.25
8.0.260.0000.00716.76
8.0.250.0040.00417.04
8.0.240.0040.00417.03
8.0.230.0070.00016.88
8.0.220.0030.00316.95
8.0.210.0000.00817.00
8.0.200.0070.00416.92
8.0.190.0040.00417.05
8.0.180.0040.00417.02
8.0.170.0000.00816.93
8.0.160.0050.00316.88
8.0.150.0030.00616.96
8.0.140.0040.00416.95
8.0.130.0000.00613.46
8.0.120.0020.00516.79
8.0.110.0000.00816.96
8.0.100.0000.00716.82
8.0.90.0000.00716.86
8.0.80.0030.01316.90
8.0.70.0000.00817.02
8.0.60.0000.00717.07
8.0.50.0060.00316.92
8.0.30.0110.00917.13
8.0.20.0120.00617.40
8.0.10.0040.00417.02
8.0.00.0020.01616.97
7.4.330.0020.00215.08
7.4.320.0000.00616.46
7.4.300.0040.00416.60
7.4.290.0050.00616.49
7.4.280.0030.00316.40
7.4.270.0040.00416.57
7.4.260.0030.00316.59
7.4.250.0040.00416.46
7.4.240.0060.00216.51
7.4.230.0000.00716.63
7.4.220.0110.00716.52
7.4.210.0120.00216.51
7.4.200.0000.00716.58
7.4.190.0000.00716.64
7.4.160.0170.00616.68
7.4.150.0030.01417.40
7.4.140.0110.00617.86
7.4.130.0090.00816.62
7.4.120.0080.01016.69
7.4.110.0070.01116.77
7.4.100.0050.01516.52
7.4.90.0140.00716.37
7.4.80.0060.01216.50
7.4.70.0100.00616.69
7.4.60.0060.01116.42
7.4.50.0030.00516.50
7.4.40.0080.00722.77
7.4.30.0120.00316.58
7.4.10.0090.00914.89
7.4.00.0060.01014.92
7.3.330.0020.00213.44
7.3.320.0060.00013.38
7.3.310.0040.00516.29
7.3.300.0000.00716.43
7.3.290.0110.00316.46
7.3.280.0120.00616.42
7.3.270.0170.00317.40
7.3.260.0240.01916.53
7.3.250.0130.00516.41
7.3.240.0090.01016.57
7.3.230.0070.01016.39
7.3.210.0070.01016.71
7.3.200.0090.01219.39
7.3.190.0130.01016.40
7.3.180.0160.00016.44
7.3.170.0090.00616.57
7.3.160.0060.01016.45
7.3.130.0030.01615.11
7.3.120.0050.01014.89
7.3.110.0070.00714.99
7.3.100.0090.00614.91
7.3.90.0090.00614.65
7.3.80.0030.00714.88
7.3.70.0040.01214.77
7.3.60.0000.01114.79
7.3.50.0140.00014.91
7.3.40.0070.00414.99
7.3.30.0090.00314.61
7.3.20.0070.01016.64
7.3.10.0070.00816.71
7.3.00.0080.00616.59
7.2.330.0110.01416.73
7.2.320.0100.00716.76
7.2.310.0080.00816.66
7.2.300.0060.01116.41
7.2.290.0060.01316.81
7.2.260.0190.00015.23
7.2.250.0100.01015.38
7.2.240.0120.00015.30
7.2.230.0070.01015.24
7.2.220.0100.00715.16
7.2.210.0030.00715.25
7.2.200.0030.01314.83
7.2.190.0030.01215.22
7.2.180.0090.00615.26
7.2.170.0070.01015.15
7.2.160.0060.01314.92
7.2.150.0090.00616.87
7.2.140.0080.00817.04
7.2.130.0060.00917.03
7.2.120.0050.01016.85
7.2.110.0090.01216.89
7.2.100.0050.00916.93
7.2.90.0060.00716.94
7.2.80.0080.00716.87
7.2.70.0070.00816.84
7.2.60.0100.00816.87
7.2.50.0080.00616.85
7.2.40.0060.00616.98
7.2.30.0040.00816.92
7.2.20.0080.00817.05
7.2.10.0040.01016.91
7.2.00.0060.00717.61
7.1.330.0070.00715.84
7.1.320.0070.00415.77
7.1.310.0110.00315.92
7.1.300.0070.00715.77
7.1.290.0100.00615.76
7.1.280.0030.01015.79
7.1.270.0090.00915.76
7.1.260.0090.00315.59
7.1.250.0080.00915.73
7.1.240.0030.01115.63
7.1.230.0050.00615.87
7.1.220.0060.00815.84
7.1.210.0090.00515.52
7.1.200.0100.00315.65
7.1.190.0050.00815.88
7.1.180.0050.00915.74
7.1.170.0030.01015.43
7.1.160.0030.00815.65
7.1.150.0040.00615.57
7.1.140.0030.01015.80
7.1.130.0050.00915.94
7.1.120.0030.00815.73
7.1.110.0080.00815.71
7.1.100.0050.00716.60
7.1.90.0100.00416.03
7.1.80.0060.00915.83
7.1.70.0050.00816.22
7.1.60.0060.00716.27
7.1.50.0070.00716.23
7.1.40.0080.00315.85
7.1.30.0060.00615.90
7.1.20.0050.00415.87
7.1.10.0050.00815.60
7.1.00.0040.03017.99
7.0.330.0090.00415.33
7.0.320.0070.00815.39
7.0.310.0020.01215.40
7.0.300.0050.00715.33
7.0.290.0100.00415.31
7.0.280.0030.00815.30
7.0.270.0030.01015.42
7.0.260.0060.00615.37
7.0.250.0080.00315.54
7.0.240.0040.00715.41
7.0.230.0060.00515.38
7.0.220.0040.00915.36
7.0.210.0080.00415.39
7.0.200.0070.00815.98
7.0.190.0030.00915.32
7.0.180.0080.00415.34
7.0.170.0050.00915.48
7.0.160.0030.01015.59
7.0.150.0030.00715.28
7.0.140.0050.03017.60
7.0.130.0060.00615.45
7.0.120.0090.00615.35
7.0.110.0110.00415.39
7.0.100.0080.01916.92
7.0.90.0070.02016.96
7.0.80.0060.01816.88
7.0.70.0080.02916.88
7.0.60.0080.03016.91
7.0.50.0080.02617.12
7.0.40.0040.03215.69
7.0.30.0090.03015.88
7.0.20.0060.03415.72
7.0.10.0040.03215.88
7.0.00.0100.02915.81
5.6.400.0030.00914.32
5.6.390.0040.00814.73
5.6.380.0070.00714.53
5.6.370.0050.00914.48
5.6.360.0030.00914.50
5.6.350.0100.00314.34
5.6.340.0070.00514.48
5.6.330.0030.01114.63
5.6.320.0070.00614.71
5.6.310.0060.00814.44
5.6.300.0070.00414.51
5.6.290.0050.00914.44
5.6.280.0040.03016.61
5.6.270.0020.01514.46
5.6.260.0030.00714.44
5.6.250.0050.03416.50
5.6.240.0040.02116.46
5.6.230.0070.02916.55
5.6.220.0080.02016.48
5.6.210.0070.03016.52
5.6.200.0070.03116.62
5.6.190.0090.03016.74
5.6.180.0050.03316.72
5.6.170.0080.03216.64
5.6.160.0080.03116.72
5.6.150.0080.02816.82
5.6.140.0070.02016.72
5.6.130.0080.03216.59
5.6.120.0060.02516.71
5.6.110.0030.02916.70
5.6.100.0090.01916.58
5.6.90.0040.03516.72
5.6.80.0090.03016.42
5.6.70.0100.02616.49
5.6.60.0100.01816.40
5.6.50.0100.03216.34
5.6.40.0060.02016.36
5.6.30.0050.01816.27
5.6.20.0070.01916.35
5.6.10.0080.02916.31
5.6.00.0080.02616.34
5.5.380.0060.02815.31
5.5.370.0060.01915.23
5.5.360.0110.02415.42
5.5.350.0070.02915.34
5.5.340.0070.01915.58
5.5.330.0100.02815.57
5.5.320.0050.03115.40
5.5.310.0030.03515.48
5.5.300.0060.02015.59
5.5.290.0050.02915.63
5.5.280.0070.03215.46
5.5.270.0100.02915.31
5.5.260.0080.03015.53
5.5.250.0010.03715.42
5.5.240.0090.03015.33
5.5.230.0030.03215.24
5.5.220.0090.03115.40
5.5.210.0110.02515.29
5.5.200.0060.02415.18
5.5.190.0060.02615.20
5.5.180.0070.01915.26
5.5.170.0090.00312.74
5.5.160.0080.02515.18
5.5.150.0100.01515.24
5.5.140.0040.02415.28
5.5.130.0100.02715.32
5.5.120.0060.02115.31
5.5.110.0060.02915.11
5.5.100.0040.02915.24
5.5.90.0060.03015.11
5.5.80.0030.03415.42
5.5.70.0040.02515.10
5.5.60.0090.01715.24
5.5.50.0050.02115.20
5.5.40.0050.02815.32
5.5.30.0100.02715.27
5.5.20.0080.02915.20
5.5.10.0070.01815.21
5.5.00.0060.01615.19
5.4.450.0060.03014.79
5.4.440.0080.03014.73
5.4.430.0080.01714.79
5.4.420.0080.03014.93
5.4.410.0090.02014.78
5.4.400.0070.02914.83
5.4.390.0050.03114.71
5.4.380.0060.02914.61
5.4.370.0050.03014.83
5.4.360.0090.01414.65
5.4.350.0070.02014.68
5.4.340.0070.02014.60
5.4.330.0060.00512.46
5.4.320.0020.03214.72
5.4.310.0080.02714.72
5.4.300.0060.02614.69
5.4.290.0030.01714.75
5.4.280.0070.02414.79
5.4.270.0040.03214.74
5.4.260.0070.02114.53
5.4.250.0040.02414.71
5.4.240.0070.01614.84
5.4.230.0060.02614.81
5.4.220.0030.03214.73
5.4.210.0050.02914.68
5.4.200.0060.01714.74
5.4.190.0090.01914.71
5.4.180.0020.03114.58
5.4.170.0030.02014.71
5.4.160.0060.02614.57
5.4.150.0030.02714.59
5.4.140.0020.02013.83
5.4.130.0110.02413.82
5.4.120.0030.02113.62
5.4.110.0050.02913.89
5.4.100.0020.02913.78
5.4.90.0070.02413.87
5.4.80.0060.02813.79
5.4.70.0060.02913.92
5.4.60.0060.02313.73
5.4.50.0060.02113.88
5.4.40.0090.02413.83
5.4.30.0070.02113.86
5.4.20.0070.01313.85
5.4.10.0040.02813.84
5.4.00.0090.02313.56
5.3.290.0070.01813.00
5.3.280.0010.02013.11
5.3.270.0100.02413.13
5.3.260.0070.02713.07
5.3.250.0080.03013.10
5.3.240.0040.02313.08
5.3.230.0090.01413.09
5.3.220.0080.02013.02
5.3.210.0060.02613.03
5.3.200.0080.01413.09
5.3.190.0040.02912.98
5.3.180.0050.03313.09
5.3.170.0060.01513.10
5.3.160.0050.02113.07
5.3.150.0040.02913.16
5.3.140.0060.02313.07
5.3.130.0040.01613.03
5.3.120.0060.02713.07
5.3.110.0060.01613.09
5.3.100.0020.03112.94
5.3.90.0040.02012.89
5.3.80.0040.02912.88
5.3.70.0020.02312.79
5.3.60.0040.02612.83
5.3.50.0010.01912.71
5.3.40.0040.01612.81
5.3.30.0020.02812.77
5.3.20.0120.01712.73
5.3.10.0090.02312.70
5.3.00.0050.02712.57
5.2.170.0050.03310.59
5.2.160.0040.02110.58
5.2.150.0030.01810.49
5.2.140.0060.02010.57
5.2.130.0090.02910.45
5.2.120.0040.02810.51
5.2.110.0050.03210.53
5.2.100.0080.02810.53
5.2.90.0020.02510.51
5.2.80.0050.03310.52
5.2.70.0030.02210.55
5.2.60.0080.02010.51
5.2.50.0070.03510.47
5.2.40.0050.02210.39
5.2.30.0010.03610.50
5.2.20.0000.03410.49
5.2.10.0040.03010.39
5.2.00.0080.02010.36
5.1.60.0050.02810.00
5.1.50.0130.0229.87
5.1.40.0050.0269.96
5.1.30.0070.02210.14
5.1.20.0020.03410.16
5.1.10.0010.0319.98
5.1.00.0040.0309.91
5.0.50.0070.0209.26
5.0.40.0030.0159.07
5.0.30.0020.0349.11
5.0.20.0020.0209.11
5.0.10.0000.0139.04
5.0.00.0050.0168.98
4.4.90.0000.0218.53
4.4.80.0030.0178.53
4.4.70.0050.0188.53
4.4.60.0050.0128.53
4.4.50.0030.0108.53
4.4.40.0010.0288.53
4.4.30.0020.0188.53
4.4.20.0120.0108.53
4.4.10.0040.0168.53
4.4.00.0000.0178.53
4.3.110.0020.0208.53
4.3.100.0000.0158.53
4.3.90.0020.0138.53
4.3.80.0030.0138.53
4.3.70.0000.0108.53
4.3.60.0020.0098.53
4.3.50.0020.0128.53
4.3.40.0000.0138.53
4.3.30.0040.0078.53
4.3.20.0020.0108.53
4.3.10.0000.0118.53
4.3.00.0020.0108.53

preferences:
42.49 ms | 401 KiB | 5 Q