3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2,3); $b = &$a; foreach($a as $v) { echo "$v\n"; unset($a[1]); }

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)
8.3.60.0040.01116.63
8.3.50.0070.01022.05
8.3.40.0040.01118.84
8.3.30.0090.00618.71
8.3.20.0070.00020.15
8.3.10.0080.00023.53
8.3.00.0080.00019.13
8.2.180.0150.00316.38
8.2.170.0100.00322.96
8.2.160.0070.00720.52
8.2.150.0090.00024.18
8.2.140.0080.00324.66
8.2.130.0110.00017.63
8.2.120.0000.00826.35
8.2.110.0050.00522.25
8.2.100.0090.00317.75
8.2.90.0040.00419.21
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0050.00318.03
8.2.50.0000.00918.07
8.2.40.0040.00419.37
8.2.30.0000.00720.61
8.2.20.0040.00417.75
8.2.10.0000.00718.12
8.2.00.0040.00418.05
8.1.280.0100.00725.92
8.1.270.0040.00422.23
8.1.260.0070.00028.09
8.1.250.0040.00428.09
8.1.240.0000.00919.28
8.1.230.0040.00717.48
8.1.220.0000.00817.74
8.1.210.0030.00618.77
8.1.200.0060.00317.25
8.1.190.0040.00417.64
8.1.180.0040.00418.10
8.1.170.0040.00418.49
8.1.160.0040.00422.01
8.1.150.0040.00418.88
8.1.140.0050.00319.57
8.1.130.0030.00317.70
8.1.120.0000.00717.44
8.1.110.0050.00517.49
8.1.100.0070.00317.46
8.1.90.0070.00017.47
8.1.80.0080.00017.35
8.1.70.0070.00017.41
8.1.60.0040.00417.48
8.1.50.0080.00017.48
8.1.40.0060.00317.41
8.1.30.0000.00817.48
8.1.20.0040.00417.51
8.1.10.0020.00517.51
8.1.00.0050.00217.57
8.0.300.0070.00018.77
8.0.290.0000.00816.63
8.0.280.0070.00018.43
8.0.270.0000.00717.12
8.0.260.0080.00017.18
8.0.250.0000.00616.91
8.0.240.0030.00316.93
8.0.230.0030.00316.96
8.0.220.0070.00016.83
8.0.210.0070.00016.89
8.0.200.0030.00316.92
8.0.190.0050.00316.98
8.0.180.0000.00816.94
8.0.170.0000.00816.81
8.0.160.0070.00016.93
8.0.150.0030.00316.73
8.0.140.0040.00416.87
8.0.130.0030.00313.30
8.0.120.0080.00016.86
8.0.110.0040.00416.83
8.0.100.0000.00816.87
8.0.90.0070.00016.81
8.0.80.0110.00516.85
8.0.70.0040.00416.73
8.0.60.0000.00716.72
8.0.50.0040.00416.76
8.0.30.0070.01016.99
8.0.20.0080.01017.40
8.0.10.0030.00316.87
8.0.00.0140.00516.69
7.4.330.0020.00216.72
7.4.320.0040.00416.60
7.4.300.0000.00616.60
7.4.290.0030.00316.49
7.4.280.0040.00416.58
7.4.270.0000.00716.43
7.4.260.0080.00016.59
7.4.250.0060.00316.44
7.4.240.0020.00616.47
7.4.230.0030.00316.66
7.4.220.0070.01316.55
7.4.210.0000.01416.54
7.4.200.0070.00016.66
7.4.160.0080.00816.52
7.4.150.0090.00917.40
7.4.140.0100.01117.86
7.4.130.0090.01016.48
7.4.120.0140.00816.47
7.4.110.0120.01016.59
7.4.100.0090.01116.49
7.4.90.0130.00516.48
7.4.80.0070.01117.42
7.4.70.0110.01016.50
7.4.60.0100.01016.54
7.4.50.0060.01116.44
7.4.40.0090.01016.42
7.4.30.0100.00816.56
7.4.20.0130.00516.43
7.4.10.0160.00516.52
7.4.00.0120.00615.93
7.3.330.0000.00613.10
7.3.320.0020.00313.10
7.3.310.0030.00316.33
7.3.300.0040.00416.22
7.3.290.0070.00016.16
7.3.280.0090.00816.27
7.3.270.0100.00717.40
7.3.260.0080.01216.69
7.3.250.0180.00716.29
7.3.240.0110.00816.33
7.3.230.0130.00516.50
7.3.220.0070.01316.43
7.3.210.0130.00516.20
7.3.200.0100.01016.41
7.3.190.0120.00616.22
7.3.180.0120.00916.47
7.3.170.0120.00616.40
7.3.160.0110.00816.42
7.3.150.0080.00916.25
7.3.140.0110.01116.30
7.3.130.0100.00916.38
7.3.120.0020.01816.52
7.3.110.0100.00716.50
7.3.100.0060.01116.37
7.3.90.0140.00516.20
7.3.80.0110.00816.34
7.3.70.0060.01316.33
7.3.60.0120.00516.29
7.3.50.0120.00616.33
7.3.40.0080.01016.31
7.3.30.0090.00815.46
7.3.20.0440.00615.46
7.3.10.0420.00615.50
7.3.00.0350.00715.58
7.2.340.0220.01216.46
7.2.330.0160.01016.51
7.2.320.0220.01216.56
7.2.310.0150.01116.50
7.2.300.0130.01416.66
7.2.290.0180.00916.49
7.2.280.0210.01116.33
7.2.270.0220.00916.50
7.2.260.0170.01516.68
7.2.250.0240.01216.52
7.2.240.0250.01016.59
7.2.230.0230.01216.66
7.2.220.0300.00816.40
7.2.210.0250.01416.60
7.2.200.0230.01116.48
7.2.190.0280.00416.45
7.2.180.0230.00916.60
7.2.170.0250.00916.50
7.2.160.0180.01015.66
7.2.150.0440.00815.92
7.2.140.0440.00715.83
7.2.130.0420.00715.82
7.2.120.0560.00815.59
7.2.110.0470.00915.62
7.2.100.0400.01615.73
7.2.90.0420.01015.77
7.2.80.0420.01015.67
7.2.70.0440.01015.65
7.2.60.0480.00915.63
7.2.50.0490.00915.62
7.2.40.0420.00915.55
7.2.30.0420.00615.71
7.2.20.0410.01415.61
7.2.10.0490.01115.67
7.2.00.0410.00715.79
7.1.330.0180.01415.45
7.1.320.0220.01015.55
7.1.310.0340.01115.69
7.1.300.0210.00515.54
7.1.290.0330.00615.56
7.1.280.0220.00815.43
7.1.270.0410.00714.70
7.1.260.0420.00714.68
7.1.250.0490.00514.48
7.1.240.0480.00614.63
7.1.230.0450.00914.62
7.1.220.0440.01014.59
7.1.210.0500.00814.69
7.1.200.0430.01014.68
7.1.190.0450.01014.78
7.1.180.0410.01114.65
7.1.170.0410.00914.78
7.1.160.0460.00914.67
7.1.150.0420.00714.62
7.1.140.0430.01214.69
7.1.130.0380.01214.72
7.1.120.0520.00814.52
7.1.110.0470.00714.67
7.1.100.0410.00814.71
7.1.90.0490.00914.80
7.1.80.0460.01115.13
7.1.70.0400.01315.13
7.1.60.0510.01015.21
7.1.50.0470.01015.19
7.1.40.0450.00715.06
7.1.30.0420.00615.20
7.1.20.0490.01015.16
7.1.10.0450.01215.18
7.1.00.0360.02516.57
7.0.330.0440.00814.33
7.0.320.0530.00614.34
7.0.310.0700.01014.34
7.0.300.0410.00914.33
7.0.290.0760.00514.39
7.0.280.0440.00514.38
7.0.270.0370.01114.32
7.0.260.0380.00914.39
7.0.250.0410.00814.39
7.0.240.0420.00914.30
7.0.230.0610.00614.76
7.0.220.0450.00514.89
7.0.210.0430.01214.98
7.0.200.0460.01114.77
7.0.190.0410.00914.88
7.0.180.0580.00714.83
7.0.170.0520.00614.92
7.0.160.0430.01114.80
7.0.150.0490.01014.76
7.0.140.0520.00814.84
7.0.130.0440.00814.88
7.0.120.0380.01216.22
7.0.110.0360.01516.32
7.0.100.0380.01516.24
7.0.90.0420.01416.30
7.0.80.0350.01616.39
7.0.70.0390.01416.31
7.0.60.0380.01416.18
7.0.50.0490.01616.34
7.0.40.0430.01616.33
7.0.30.0400.01416.23
7.0.20.0510.01016.26
7.0.10.0370.01216.31
7.0.00.0350.01316.31
5.6.400.0160.01515.13
5.6.390.0160.01115.01
5.6.380.0150.01415.03
5.6.370.0210.00615.06
5.6.360.0210.00715.22
5.6.350.0200.00815.09
5.6.340.0200.00814.92
5.6.330.0190.00815.03
5.6.320.0130.01515.10
5.6.310.0150.00814.96
5.6.300.0230.00515.05
5.6.290.0190.01015.12
5.6.280.0190.00815.05
5.6.270.0160.00715.15
5.6.260.0120.01716.25
5.6.250.0120.01516.36
5.6.240.0110.01716.22
5.6.230.0150.01416.20
5.6.220.0120.01616.29
5.6.210.0160.01516.18
5.6.200.0170.01416.14
5.6.190.0160.01516.28
5.6.180.0100.01516.25
5.6.170.0120.01516.22
5.6.160.0140.01716.29
5.6.150.0110.01716.25
5.6.140.0150.01316.25
5.6.130.0110.01616.11
5.6.120.0120.01716.20
5.6.110.0130.01716.21
5.6.100.0100.01716.17
5.6.90.0120.01416.23
5.6.80.0120.01316.09
5.6.70.0100.01215.93
5.6.60.0120.01615.98
5.6.50.0130.01415.99
5.6.40.0110.01115.94
5.6.30.0060.01716.00
5.6.20.0080.01915.93
5.6.10.0080.01815.99
5.6.00.0090.01616.00
5.5.380.0140.01415.51
5.5.370.0150.01215.51
5.5.360.0070.02215.64
5.5.350.0100.01515.51
5.5.340.0130.01415.51
5.5.330.0080.01815.54
5.5.320.0110.01415.52
5.5.310.0090.01515.66
5.5.300.0130.01815.54
5.5.290.0140.01415.52
5.5.280.0130.01415.57
5.5.270.0130.01515.64
5.5.260.0120.01315.62
5.5.250.0130.01715.40
5.5.240.0100.01215.30
5.5.230.0070.01715.37
5.5.220.0130.01715.29
5.5.210.0100.01615.36
5.5.200.0120.01215.24
5.5.190.0070.01615.34
5.5.180.0110.01415.39
5.5.170.0140.01014.86
5.5.160.0120.01515.44
5.5.150.0140.01215.49
5.5.140.0130.01215.35
5.5.130.0130.01315.31
5.5.120.0120.01415.51
5.5.110.0110.01615.50
5.5.100.0090.01415.41
5.5.90.0110.01315.57
5.5.80.0130.01415.50
5.5.70.0120.01315.39
5.5.60.0130.01515.49
5.5.50.0170.01115.38
5.5.40.0140.01515.37
5.5.30.0130.01715.40
5.5.20.0130.01415.39
5.5.10.0130.01615.31
5.5.00.0140.01515.30

preferences:
49.86 ms | 401 KiB | 5 Q