3v4l.org

run code in 300+ PHP versions simultaneously
<?php $bla = serialize(['a', 'b', 'c']); function isSerialized($string) { return @unserialize($string) !== false ? true : false; } var_dump(isSerialized("abc")); var_dump(isSerialized($bla));

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)
8.3.70.0190.00318.54
8.3.60.0090.00918.43
8.3.50.0110.00618.19
8.3.40.0060.01018.70
8.3.30.0040.01118.40
8.3.20.0040.00419.02
8.3.10.0000.00820.73
8.3.00.0040.00419.66
8.2.180.0070.01418.28
8.2.170.0150.00322.96
8.2.160.0110.00319.09
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00419.85
8.2.120.0040.00426.35
8.2.110.0090.00019.27
8.2.100.0000.01117.84
8.2.90.0040.00417.75
8.2.80.0000.00818.61
8.2.70.0060.00317.79
8.2.60.0000.00717.80
8.2.50.0000.00818.10
8.2.40.0000.00819.05
8.2.30.0070.00019.32
8.2.20.0040.00417.94
8.2.10.0040.00417.94
8.2.00.0040.00419.49
8.1.280.0140.00925.92
8.1.270.0060.00321.92
8.1.260.0030.00526.35
8.1.250.0050.00228.09
8.1.240.0100.00023.91
8.1.230.0100.00020.97
8.1.220.0040.00418.73
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0000.00817.23
8.1.180.0030.00618.10
8.1.170.0100.00018.50
8.1.160.0040.00418.77
8.1.150.0000.00718.80
8.1.140.0040.00417.75
8.1.130.0000.00719.02
8.1.120.0030.00517.36
8.1.110.0080.00017.35
8.1.100.0000.00817.32
8.1.90.0050.00317.49
8.1.80.0040.00417.38
8.1.70.0030.00317.38
8.1.60.0080.00017.51
8.1.50.0040.00417.51
8.1.40.0000.00817.48
8.1.30.0000.00817.59
8.1.20.0020.00517.65
8.1.10.0060.00317.48
8.1.00.0000.00817.38
8.0.300.0080.00019.91
8.0.290.0040.00416.75
8.0.280.0000.00718.45
8.0.270.0040.00417.21
8.0.260.0020.00517.25
8.0.250.0000.00716.91
8.0.240.0030.00316.91
8.0.230.0070.00316.91
8.0.220.0000.00716.84
8.0.210.0080.00016.83
8.0.200.0030.00317.03
8.0.190.0060.00317.04
8.0.180.0030.00516.95
8.0.170.0040.00416.86
8.0.160.0040.00417.05
8.0.150.0030.00316.90
8.0.140.0000.00716.86
8.0.130.0030.00313.32
8.0.120.0000.00716.87
8.0.110.0000.00716.95
8.0.100.0000.00816.97
8.0.90.0000.00716.81
8.0.80.0070.01416.96
8.0.70.0000.00716.93
8.0.60.0000.00716.86
8.0.50.0000.00716.98
8.0.30.0120.00917.13
8.0.20.0110.00717.40
8.0.10.0000.00716.90
8.0.00.0090.00916.80
7.4.330.0020.00215.55
7.4.320.0060.00016.61
7.4.300.0030.00316.52
7.4.290.0000.00816.59
7.4.280.0000.00716.49
7.4.270.0030.00516.60
7.4.260.0070.00016.60
7.4.250.0000.00716.56
7.4.240.0000.00716.41
7.4.230.0040.00416.67
7.4.220.0000.00716.61
7.4.210.0060.01316.53
7.4.200.0030.00316.50
7.4.160.0060.01016.58
7.4.140.0090.01117.86
7.4.130.0060.01216.78
7.4.120.0120.00816.50
7.4.110.0110.00716.41
7.4.100.0100.01116.59
7.4.90.0090.01316.47
7.4.80.0130.01019.39
7.4.70.0100.00516.45
7.4.60.0110.00516.46
7.4.50.0070.00716.55
7.4.40.0160.00716.57
7.4.00.0070.01014.75
7.3.330.0030.00213.14
7.3.320.0000.00513.28
7.3.310.0000.00716.32
7.3.300.0000.00716.18
7.3.290.0030.00316.33
7.3.280.0070.00916.28
7.3.260.0090.00816.37
7.3.240.0120.00716.35
7.3.230.0100.00616.52
7.3.210.0120.00616.43
7.3.200.0130.01016.34
7.3.190.0070.01016.46
7.3.180.0100.00716.37
7.3.170.0060.01016.45
7.3.160.0160.00016.31
7.2.330.0120.00616.53
7.2.320.0070.01216.73
7.2.310.0120.00916.64
7.2.300.0000.01716.61
7.2.290.0050.01616.55
7.2.60.3090.00815.05
7.2.50.2350.01214.89
7.2.40.2760.01315.08
7.2.30.2810.00915.45
7.2.20.2210.01114.98
7.2.10.2850.01215.41
7.2.00.2870.01315.52
7.1.200.0030.01015.82
7.1.170.2220.00613.75
7.1.160.2620.01016.89
7.1.150.2820.01516.75
7.1.140.2720.01516.67
7.1.130.2720.01116.59
7.1.120.2980.01016.50
7.1.110.3050.01115.81
7.1.100.2960.01016.03
7.1.90.2580.01015.85
7.1.80.2260.01216.05
7.1.70.3200.01015.04
7.1.60.2700.01333.19
7.1.50.3350.01632.87
7.1.40.3590.01932.45
7.1.30.3850.01832.40
7.1.20.3990.01532.58
7.1.10.3640.01314.78
7.1.00.2950.01414.93

preferences:
56.84 ms | 400 KiB | 5 Q