3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = [1 => true]; next($data); var_dump(key($data)); $data[0] = true; var_dump(key($data));

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)
8.3.60.0040.01118.55
8.3.50.0100.01018.20
8.3.40.0140.00018.79
8.3.30.0090.00618.71
8.3.20.0040.00421.77
8.3.10.0040.00421.83
8.3.00.0000.00722.34
8.2.180.0140.00418.41
8.2.170.0140.00718.79
8.2.160.0030.01022.96
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0110.00720.74
8.2.110.0110.00019.28
8.2.100.0060.00617.66
8.2.90.0000.00720.53
8.2.80.0050.00317.97
8.2.70.0000.00817.90
8.2.60.0080.00018.03
8.2.50.0030.00618.10
8.2.40.0090.00019.48
8.2.30.0080.00019.13
8.2.20.0040.00418.11
8.2.10.0030.00519.27
8.2.00.0020.00519.22
8.1.280.0100.01325.92
8.1.270.0040.00422.07
8.1.260.0000.00826.35
8.1.250.0050.00228.09
8.1.240.0100.00022.39
8.1.230.0040.00820.96
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0000.00817.35
8.1.190.0080.00017.35
8.1.180.0090.00018.10
8.1.170.0080.00018.61
8.1.160.0050.00218.82
8.1.150.0000.00718.81
8.1.140.0000.00720.99
8.1.130.0030.00319.98
8.1.120.0000.00817.46
8.1.110.0040.00417.38
8.1.100.0040.00417.29
8.1.90.0000.00717.38
8.1.80.0040.00417.45
8.1.70.0030.00517.38
8.1.60.0000.00817.43
8.1.50.0050.00317.42
8.1.40.0030.00617.43
8.1.30.0030.00617.48
8.1.20.0000.00817.48
8.1.10.0000.00817.48
8.1.00.0000.00817.40
8.0.300.0060.00319.88
8.0.290.0000.00816.58
8.0.280.0030.00318.41
8.0.270.0000.00717.07
8.0.260.0000.00620.05
8.0.250.0000.00816.89
8.0.240.0030.00316.91
8.0.230.0000.00716.89
8.0.220.0030.00316.85
8.0.210.0040.00416.85
8.0.200.0000.00816.79
8.0.190.0030.00316.88
8.0.180.0030.00516.74
8.0.170.0000.00816.86
8.0.160.0040.00416.84
8.0.150.0070.00016.68
8.0.140.0030.00316.80
8.0.130.0030.00313.26
8.0.120.0050.00316.76
8.0.110.0070.00016.79
8.0.100.0040.00416.67
8.0.90.0040.00416.77
8.0.80.0050.01016.80
8.0.70.0030.00616.77
8.0.60.0000.00816.73
8.0.50.0070.00016.87
8.0.30.0150.00817.02
8.0.20.0070.01117.06
8.0.10.0050.00317.02
8.0.00.0130.01016.58
7.4.330.0000.00515.55
7.4.320.0030.00316.44
7.4.300.0070.00016.43
7.4.290.0030.00316.55
7.4.280.0040.00416.45
7.4.270.0000.00816.43
7.4.260.0000.00613.23
7.4.250.0080.00016.39
7.4.240.0030.00316.46
7.4.230.0040.00416.57
7.4.220.0050.00216.54
7.4.210.0090.00816.51
7.4.200.0050.00216.61
7.4.140.0150.00617.86
7.4.130.0140.00316.38
7.4.120.0100.00716.52
7.4.110.0100.01016.45
7.4.100.0110.01116.41
7.4.90.0120.00416.57
7.4.80.0060.01019.39
7.4.70.0070.01016.53
7.4.60.0200.00316.41
7.4.50.0140.00016.39
7.4.40.0070.01016.29
7.4.10.0100.00614.83
7.4.00.0050.01114.87
7.3.330.0000.00716.13
7.3.320.0000.00613.04
7.3.310.0000.00716.14
7.3.300.0030.00316.25
7.3.290.0080.00516.23
7.3.280.0070.00716.18
7.3.260.0080.01116.28
7.3.240.0080.00916.32
7.3.230.0120.00816.18
7.3.210.0060.01016.46
7.3.200.0070.01016.20
7.3.190.0110.00816.23
7.3.180.0000.01616.21
7.3.170.0090.00916.22
7.3.160.0080.01216.27
7.3.130.0040.01414.71
7.3.120.0060.01214.63
7.3.110.0090.00814.56
7.3.100.0040.01114.61
7.3.90.0080.00614.76
7.3.80.0080.00814.70
7.3.70.0080.00614.62
7.3.60.0070.00814.76
7.3.50.0070.00714.60
7.3.40.0080.00614.68
7.3.30.0070.00814.59
7.3.20.0090.00815.67
7.3.10.0090.00715.54
7.3.00.0080.00615.55
7.2.330.0130.00416.58
7.2.320.0080.00816.23
7.2.310.0100.00616.51
7.2.300.0130.00916.55
7.2.290.0110.00716.35
7.2.260.0070.00714.60
7.2.250.0060.01314.93
7.2.240.0090.00914.90
7.2.230.0100.00314.87
7.2.220.0050.01114.89
7.2.210.0060.01014.97
7.2.200.0080.00714.79
7.2.190.0030.01114.78
7.2.180.0060.00814.75
7.2.170.0080.00614.71
7.2.160.0080.00614.66
7.2.150.0090.00815.38
7.2.140.0100.00715.40
7.2.130.0070.00815.50
7.2.120.0060.01115.48
7.2.110.0120.00915.32
7.2.100.0050.01315.39
7.2.90.0100.00715.38
7.2.80.0070.01215.61
7.2.70.0080.01115.57
7.2.60.0100.01215.44
7.2.50.0130.00615.53
7.2.40.0050.01215.42
7.2.30.0110.00915.45
7.2.20.0080.01115.46
7.2.10.0060.01315.34
7.2.00.0100.00815.38
7.1.330.0080.00815.81
7.1.320.0080.00814.84
7.1.310.0070.00614.79
7.1.300.0050.01014.70
7.1.290.0070.00714.78
7.1.280.0110.00414.80
7.1.270.0080.00714.76
7.1.260.0090.00614.73
7.1.250.0090.00514.38
7.1.240.0070.01115.53
7.1.230.0060.01015.52
7.1.220.0070.01015.86
7.1.210.0070.01115.65
7.1.200.0040.00715.69
7.1.190.0040.01115.65
7.1.180.0100.00315.61
7.1.170.0070.00715.81
7.1.160.0000.00915.53
7.1.150.0060.00615.80
7.1.140.0070.00715.67
7.1.130.0040.01115.61
7.1.120.0000.01215.41
7.1.110.0080.00015.71
7.1.100.0030.00615.66
7.1.90.0090.00315.53
7.1.80.0120.00415.58
7.1.70.0030.00915.67
7.1.60.0030.00715.49
7.1.50.0070.01015.22
7.1.40.0030.00615.54
7.1.30.0070.00715.71
7.1.20.0060.00615.57
7.1.10.0000.00815.56
7.1.00.0030.01315.33

preferences:
62.47 ms | 400 KiB | 5 Q