3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo serialize([1=>3,"test"=>2]);

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)
8.3.60.0070.00716.49
8.3.50.0090.00921.79
8.3.40.0090.01218.66
8.3.30.0070.00719.00
8.3.20.0040.00420.11
8.3.10.0040.00421.64
8.3.00.0000.00818.96
8.2.180.0070.01418.29
8.2.170.0090.00622.96
8.2.160.0100.00322.13
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0070.00019.54
8.2.110.0060.00322.13
8.2.100.0060.00917.64
8.2.90.0070.00019.09
8.2.80.0060.00317.97
8.2.70.0030.00617.50
8.2.60.0040.00417.78
8.2.50.0090.00018.07
8.2.40.0040.00418.22
8.2.30.0090.00019.48
8.2.20.0040.00417.48
8.2.10.0040.00417.87
8.2.00.0000.00917.60
8.1.280.0070.01425.92
8.1.270.0080.00018.61
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0060.00323.83
8.1.230.0060.00618.88
8.1.220.0000.00717.74
8.1.210.0000.00818.77
8.1.200.0030.00617.10
8.1.190.0040.00417.10
8.1.180.0000.00718.10
8.1.170.0000.00818.54
8.1.160.0040.00421.92
8.1.150.0070.00018.75
8.1.140.0030.00619.12
8.1.130.0000.00617.75
8.1.120.0000.00717.33
8.1.110.0000.00717.29
8.1.100.0070.00017.28
8.1.90.0030.00517.33
8.1.80.0030.00417.26
8.1.70.0000.00717.33
8.1.60.0000.00817.34
8.1.50.0060.00617.39
8.1.40.0020.00517.36
8.1.30.0040.00417.48
8.1.20.0040.00417.43
8.1.10.0080.00017.42
8.1.00.0030.00517.39
8.0.300.0070.00018.77
8.0.290.0000.00716.63
8.0.280.0000.00718.30
8.0.270.0030.00317.16
8.0.260.0060.00017.19
8.0.250.0060.00016.77
8.0.240.0040.00316.84
8.0.230.0030.00316.87
8.0.220.0000.00716.76
8.0.210.0030.00316.74
8.0.200.0000.00616.84
8.0.190.0000.00716.77
8.0.180.0080.00016.80
8.0.170.0040.00416.77
8.0.160.0070.00016.67
8.0.150.0000.00716.66
8.0.140.0000.00716.63
8.0.130.0000.00613.14
8.0.120.0000.00816.72
8.0.110.0000.00716.58
8.0.100.0050.00216.71
8.0.90.0000.00716.54
8.0.80.0030.01316.76
8.0.70.0040.00416.60
8.0.60.0030.00316.57
8.0.50.0040.00416.86
8.0.30.0090.01316.84
8.0.20.0130.00717.40
8.0.10.0040.00416.88
8.0.00.0120.00516.47
7.4.330.0050.00015.03
7.4.320.0000.00716.26
7.4.300.0030.00316.44
7.4.290.0000.00616.43
7.4.280.0030.00516.46
7.4.270.0030.00316.33
7.4.260.0040.00416.25
7.4.250.0000.00716.40
7.4.240.0030.00516.32
7.4.230.0050.00216.18
7.4.220.0110.00616.50
7.4.210.0070.01316.44
7.4.200.0030.00316.39
7.4.160.0090.00616.27
7.4.150.0150.00317.40
7.4.140.0090.00817.86
7.4.130.0130.00516.35
7.4.120.0150.00516.37
7.4.110.0000.01716.47
7.4.100.0000.01716.23
7.4.90.0060.01216.41
7.4.80.0070.01419.39
7.4.70.0060.01216.39
7.4.60.0000.01516.36
7.4.50.0040.00416.38
7.4.40.0060.01316.31
7.4.30.0070.01116.30
7.4.00.0100.00614.56
7.3.330.0030.00312.88
7.3.320.0000.00512.96
7.3.310.0070.00015.95
7.3.300.0000.00716.16
7.3.290.0030.00315.96
7.3.280.0090.00616.10
7.3.270.0080.00817.40
7.3.260.0110.00616.18
7.3.250.0130.00516.21
7.3.240.0130.00316.09
7.3.230.0110.00616.48
7.3.210.0070.01016.25
7.3.200.0110.00719.39
7.3.190.0070.01016.13
7.3.180.0090.00616.10
7.3.170.0030.01316.32
7.3.160.0120.00316.19
7.2.330.0180.00016.29
7.2.320.0100.00716.50
7.2.310.0100.00716.60
7.2.300.0030.01316.56
7.2.290.0060.01216.31
7.2.60.0070.00716.70
7.2.00.0060.00919.41
7.1.200.0000.01615.54
7.1.100.0040.00818.02
7.1.70.0000.00716.85
7.1.60.0160.00919.46
7.1.50.0130.01016.53
7.1.00.0030.07722.40
7.0.200.0020.00516.61
7.0.140.0030.06322.15
7.0.60.0100.08020.01
7.0.50.0100.07717.80
7.0.40.0030.04720.13
7.0.30.0130.04720.18
7.0.20.0200.04320.12
7.0.10.0100.08720.33
7.0.00.0100.08020.20
5.6.280.0100.06721.09
5.6.210.0070.08020.46
5.6.200.0200.07318.14
5.6.190.0100.08020.57
5.6.180.0430.05020.41
5.6.170.0270.06320.38
5.6.160.0070.03720.71
5.6.150.0130.07718.22
5.6.140.0130.06318.14
5.6.130.0070.07718.11
5.6.120.0130.07721.04
5.6.110.0070.07321.13
5.6.100.0100.08321.05
5.6.90.0030.07020.95
5.6.80.0070.08320.37
5.5.350.0300.07320.52
5.5.340.0070.04017.92
5.5.330.0000.05020.25
5.5.320.0200.07320.32
5.5.310.0200.07320.29
5.5.300.0030.07017.90
5.5.290.0070.07317.96
5.5.280.0030.04720.76
5.5.270.0030.08020.88
5.5.260.0170.05320.86
5.5.250.0130.07320.53
5.5.240.0030.03720.36
5.4.450.0170.05319.48
5.4.440.1100.07719.41
5.4.430.0230.04019.25
5.4.420.0000.06319.46
5.4.410.0130.06718.91
5.4.400.0100.07318.66
5.4.390.1100.05018.49
5.4.380.0900.05018.65
5.4.370.0100.06018.73
5.4.360.0070.08018.74
5.4.350.0170.05318.72
5.4.340.0800.06018.78
5.4.320.1030.05318.62
5.4.310.1070.05018.67
5.4.300.1000.05318.59
5.4.290.0930.05718.72
5.4.280.1100.04718.59
5.4.270.1030.06018.68
5.4.260.1070.06018.71
5.4.250.1200.07318.69
5.4.240.1070.05318.61
5.4.230.1100.05718.57
5.4.220.1100.05318.57
5.4.210.0900.05718.76
5.4.200.1170.05716.41
5.4.190.1300.06018.54
5.4.180.0900.06318.47
5.4.170.0970.05718.63
5.4.160.0900.05318.47
5.4.150.1070.04718.75
5.4.140.0930.06316.17
5.4.130.1070.04716.25
5.4.120.0930.05316.22
5.4.110.0970.05316.24
5.4.100.0900.05716.29
5.4.90.1000.05716.12
5.4.80.1130.04316.24
5.4.70.1030.04716.23
5.4.60.1030.04316.27
5.4.50.1000.06016.13
5.4.40.0970.07016.23
5.4.30.1070.05016.10
5.4.20.1030.05016.22
5.4.10.0870.04716.15
5.4.00.1030.05315.80
5.3.290.1130.05714.63
5.3.280.1030.04714.54
5.3.270.0800.06014.68
5.3.260.1030.05314.68
5.3.250.0600.05314.52
5.3.240.0900.06014.68
5.3.230.1100.05314.49
5.3.220.0800.06014.48
5.3.210.0870.06014.48
5.3.200.1000.04314.46
5.3.190.0900.06014.62
5.3.180.0670.05714.64
5.3.170.0700.07014.48
5.3.160.1270.04714.48
5.3.150.0730.05314.67
5.3.140.0630.05714.65
5.3.130.1130.07014.53
5.3.120.1130.05714.49
5.3.110.0570.06014.48
5.3.100.0830.04314.03
5.3.90.0970.05714.00
5.3.80.1130.04314.05
5.3.70.0670.06013.93
5.3.60.0630.05713.98
5.3.50.1230.06014.04
5.3.40.0770.05313.95
5.3.30.0600.05314.01
5.3.20.0800.05713.62
5.3.10.0800.05013.57
5.3.00.0570.05713.55
5.2.170.0630.05011.19
5.2.160.0630.05311.11
5.2.150.0600.05311.05
5.2.140.0530.05311.09
5.2.130.0670.04711.15
5.2.120.0700.04311.03
5.2.110.0900.05011.10
5.2.100.0670.04311.14
5.2.90.0800.04311.16
5.2.80.0770.03311.05
5.2.70.0400.06311.05
5.2.60.0930.04311.07
5.2.50.0900.04011.04
5.2.40.0530.05310.94
5.2.30.0730.05311.13
5.2.20.0770.04010.99
5.2.10.0400.05310.85
5.2.00.0500.05710.76
5.1.60.0800.0509.96
5.1.50.0630.04010.01
5.1.40.0470.0309.93
5.1.30.0770.04010.36
5.1.20.0770.03310.36
5.1.10.0830.02710.21
5.1.00.0600.04710.06
5.0.50.0400.0438.64
5.0.40.0370.0378.43
5.0.30.0230.0508.34
5.0.20.0330.0308.28
5.0.10.0170.0408.20
5.0.00.0230.0508.23
4.4.90.0300.0275.83
4.4.80.0330.0235.94
4.4.70.0200.0205.86
4.4.60.0230.0275.92
4.4.50.0270.0275.90
4.4.40.0470.0375.91
4.4.30.0400.0205.91
4.4.20.0200.0275.96
4.4.10.0200.0235.92
4.4.00.0170.0435.95
4.3.110.0300.0235.82
4.3.100.0270.0275.87
4.3.90.0200.0235.80
4.3.80.0270.0405.79
4.3.70.0200.0305.88
4.3.60.0330.0205.80
4.3.50.0270.0175.77
4.3.40.0270.0335.80
4.3.30.0030.0275.06
4.3.20.0170.0305.06
4.3.10.0170.0275.06
4.3.00.0070.0206.96

preferences:
48.01 ms | 401 KiB | 5 Q