3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ 'a', 'b', 'c' ]; while($letter=key($arr)) { echo $letter; next($arr); }

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)
8.3.70.0200.00016.38
8.3.60.0110.00416.63
8.3.50.0110.00721.13
8.3.40.0120.00318.55
8.3.30.0070.00718.59
8.3.20.0040.00420.34
8.3.10.0080.00821.91
8.3.00.0000.00822.30
8.2.190.0140.00718.16
8.2.180.0090.00916.50
8.2.170.0150.00022.96
8.2.160.0070.00719.29
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0080.00022.27
8.2.120.0000.00826.35
8.2.110.0050.00519.33
8.2.100.0080.00418.09
8.2.90.0040.00419.09
8.2.80.0060.00317.97
8.2.70.0040.00417.49
8.2.60.0000.00817.80
8.2.50.0030.00518.10
8.2.40.0000.00820.40
8.2.30.0040.00419.23
8.2.20.0040.00417.52
8.2.10.0050.00317.93
8.2.00.0030.00617.55
8.1.280.0040.01125.92
8.1.270.0060.00323.96
8.1.260.0000.00828.09
8.1.250.0040.00428.09
8.1.240.0050.00522.75
8.1.230.0040.00720.31
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0040.00417.13
8.1.190.0050.00317.10
8.1.180.0020.00518.10
8.1.170.0000.00918.52
8.1.160.0080.00022.13
8.1.150.0000.00818.86
8.1.140.0040.00419.61
8.1.130.0030.00517.68
8.1.120.0000.00717.42
8.1.110.0000.00817.27
8.1.100.0000.00717.27
8.1.90.0000.00717.34
8.1.80.0000.00717.40
8.1.70.0040.00417.41
8.1.60.0060.00317.41
8.1.50.0080.00017.36
8.1.40.0000.01117.34
8.1.30.0080.00417.48
8.1.20.0030.00517.42
8.1.10.0040.00417.45
8.1.00.0030.00617.30
8.0.300.0070.00019.21
8.0.290.0080.00016.75
8.0.280.0030.00318.31
8.0.270.0030.00317.20
8.0.260.0060.00017.37
8.0.250.0000.00616.91
8.0.240.0000.00616.75
8.0.230.0040.00416.78
8.0.220.0080.00016.75
8.0.210.0000.00616.81
8.0.200.0000.00716.74
8.0.190.0040.00416.87
8.0.180.0070.00016.84
8.0.170.0040.00416.73
8.0.160.0000.00716.95
8.0.150.0050.00316.63
8.0.140.0000.01116.73
8.0.130.0020.00513.26
8.0.120.0000.00816.77
8.0.110.0040.00416.79
8.0.100.0040.00416.88
8.0.90.0050.00216.70
8.0.80.0160.00016.88
8.0.70.0080.00016.84
8.0.60.0040.00416.66
8.0.50.0040.00416.72
8.0.30.0120.00516.98
8.0.20.0090.00917.40
8.0.10.0030.00316.86
8.0.00.0140.00716.70
7.4.330.0000.00515.08
7.4.320.0000.00616.52
7.4.300.0000.00616.52
7.4.290.0030.00316.53
7.4.280.0030.00616.52
7.4.270.0040.00416.48
7.4.260.0000.00916.50
7.4.250.0000.00716.34
7.4.240.0030.00616.50
7.4.230.0000.00716.48
7.4.220.0090.00916.40
7.4.210.0070.00716.38
7.4.200.0030.00316.59
7.4.160.0100.00816.30
7.4.150.0090.00917.40
7.4.140.0060.01217.86
7.4.130.0110.00816.37
7.4.120.0120.00516.46
7.4.110.0120.00816.43
7.4.100.0110.00816.48
7.4.90.0120.00616.40
7.4.80.0080.00819.39
7.4.70.0140.00316.42
7.4.60.0040.01216.30
7.4.50.0060.00616.21
7.4.40.0130.01016.49
7.4.30.0070.01016.27
7.4.10.0120.00614.74
7.4.00.0080.00814.74
7.3.330.0000.00612.97
7.3.320.0030.00313.12
7.3.310.0000.00716.13
7.3.300.0040.00416.04
7.3.290.0090.00516.10
7.3.280.0060.01016.13
7.3.270.0130.00617.40
7.3.260.0140.00316.33
7.3.250.0090.01116.32
7.3.240.0160.00616.22
7.3.230.0100.00716.39
7.3.210.0100.00716.39
7.3.200.0030.01216.05
7.3.190.0060.01216.30
7.3.180.0080.00816.57
7.3.170.0310.02116.31
7.3.160.0040.01416.24
7.3.130.0070.01014.57
7.3.120.0060.01014.40
7.3.110.0100.01014.91
7.3.100.0070.01114.85
7.3.90.0030.00614.54
7.3.80.0070.00714.60
7.3.70.0130.00314.63
7.3.60.0060.00614.83
7.3.50.0000.00914.61
7.3.40.0030.01014.63
7.3.30.0070.00314.62
7.3.20.0040.01116.40
7.3.10.0030.01116.40
7.3.00.0020.01216.43
7.2.330.0060.01116.39
7.2.320.0070.01016.29
7.2.310.0120.00616.21
7.2.300.0110.01116.50
7.2.290.0090.00616.43
7.2.260.0110.00714.76
7.2.250.0100.00714.96
7.2.240.0030.01014.73
7.2.230.0040.01114.73
7.2.220.0070.00714.56
7.2.210.0030.01214.75
7.2.200.0000.01514.97
7.2.190.0110.00614.87
7.2.180.0060.00614.61
7.2.170.0060.00315.04
7.2.160.0030.01314.75
7.2.150.0040.01216.64
7.2.140.0000.01416.77
7.2.130.0050.01016.62
7.2.120.0070.00316.85
7.2.110.0080.00316.55
7.2.100.0030.01016.53
7.2.90.0070.00616.88
7.2.80.0050.00816.88
7.2.70.0070.00716.85
7.2.60.0040.00916.66
7.2.50.0050.00716.93
7.2.40.0050.00716.81
7.2.30.0090.00516.69
7.2.20.0040.00816.73
7.2.10.0070.00316.63
7.2.00.0020.01117.57
7.1.330.0060.01015.79
7.1.320.0030.01015.82
7.1.310.0060.00915.92
7.1.300.0050.00515.41
7.1.290.0030.00915.41
7.1.280.0060.00615.75
7.1.270.0130.00015.35
7.1.260.0040.00715.75
7.1.250.0110.00015.77
7.1.240.0000.01315.52
7.1.230.0070.00715.69
7.1.220.0070.00715.70
7.1.210.0040.00815.83
7.1.200.0040.01015.67
7.1.190.0060.01015.41
7.1.180.0040.00815.85
7.1.170.0110.00615.48
7.1.160.0060.00615.72
7.1.150.0070.00715.77
7.1.140.0070.00315.48
7.1.130.0100.00315.42
7.1.120.0040.01515.74
7.1.110.0030.01215.51
7.1.100.0020.01316.97
7.1.90.0070.00715.88
7.1.80.0000.01215.70
7.1.70.0040.00716.47
7.1.60.0050.00916.32
7.1.50.0030.01015.70
7.1.40.0040.00415.56
7.1.30.0000.01415.63
7.1.20.0090.00315.70
7.1.10.0000.01315.84
7.1.00.0140.03319.01
7.0.330.0140.00015.07
7.0.320.0090.00615.14
7.0.310.0070.00715.39
7.0.300.0040.00815.32
7.0.290.0000.00815.31
7.0.280.0090.00015.16
7.0.270.0040.00815.32
7.0.260.0080.00815.47
7.0.250.0040.01115.25
7.0.240.0030.01415.36
7.0.230.0070.00715.27
7.0.220.0040.00715.20
7.0.210.0070.00715.39
7.0.200.0070.00615.94
7.0.190.0080.00315.41
7.0.180.0000.01215.14
7.0.170.0030.00915.45
7.0.160.0030.01015.46
7.0.150.0070.00715.38
7.0.140.0110.00415.16
7.0.130.0070.01015.49
7.0.120.0060.00915.45
7.0.110.0080.03317.69
7.0.100.0060.03317.77
7.0.90.0080.03417.76
7.0.80.0140.03817.57
7.0.70.0070.04217.69
7.0.60.0100.03017.63
7.0.50.0080.03817.91
7.0.40.0050.03416.96
7.0.30.0070.03016.81
7.0.20.0320.02816.97
7.0.10.0150.04116.82
7.0.00.0140.03716.74
5.6.400.0030.01014.16
5.6.390.0000.01114.19
5.6.380.0000.00914.55
5.6.370.0000.01414.32
5.6.360.0070.01013.98
5.6.350.0000.01214.32
5.6.340.0090.00013.84
5.6.330.0070.00714.31
5.6.320.0090.00914.57
5.6.310.0090.00614.54
5.6.300.0000.01714.20
5.6.290.0120.00314.53
5.6.280.0000.02014.12
5.6.270.0110.00414.41
5.6.260.0130.00614.18
5.6.250.0080.03517.58
5.6.240.0100.03217.64
5.6.230.0050.03617.49
5.6.220.0080.03317.49
5.6.210.0090.03017.41
5.6.200.0100.03617.62
5.6.190.0140.02817.67
5.6.180.0060.03117.62
5.6.170.0090.03317.82
5.6.160.0080.03617.51
5.6.150.0100.03317.71
5.6.140.0080.03217.62
5.6.130.0030.03517.86
5.6.120.0090.03317.64
5.6.110.0160.03817.73
5.6.100.0080.03317.65
5.6.90.0080.03517.58
5.6.80.0110.02617.38
5.6.70.0100.03017.24
5.6.60.0070.03217.25
5.6.50.0100.03017.28
5.6.40.0090.04217.24
5.6.30.0050.03417.23
5.6.20.0070.03717.04
5.6.10.0100.03117.24
5.6.00.0120.02717.39

preferences:
67.18 ms | 401 KiB | 5 Q