3v4l.org

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

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)
8.3.60.0110.00718.30
8.3.50.0140.00018.22
8.3.40.0110.00418.59
8.3.30.0130.00618.84
8.3.20.0000.00820.29
8.3.10.0050.00323.69
8.3.00.0000.00819.91
8.2.180.0040.01118.18
8.2.170.0090.00622.96
8.2.160.0170.00020.44
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0060.00319.33
8.2.120.0060.00326.35
8.2.110.0090.00019.35
8.2.100.0000.01117.91
8.2.90.0030.00519.22
8.2.80.0040.00417.97
8.2.70.0000.00817.63
8.2.60.0030.00617.93
8.2.50.0060.00318.07
8.2.40.0100.00020.60
8.2.30.0040.00420.55
8.2.20.0040.00417.80
8.2.10.0040.00418.11
8.2.00.0040.00418.20
8.1.280.0040.01425.92
8.1.270.0040.00420.33
8.1.260.0070.00028.09
8.1.250.0040.00428.09
8.1.240.0030.00617.66
8.1.230.0080.00819.13
8.1.220.0040.00417.79
8.1.210.0060.00318.77
8.1.200.0090.00017.35
8.1.190.0000.00717.22
8.1.180.0000.00818.10
8.1.170.0060.00318.70
8.1.160.0040.00420.82
8.1.150.0050.00318.85
8.1.140.0040.00419.66
8.1.130.0000.00717.73
8.1.120.0030.00317.46
8.1.110.0000.00817.46
8.1.100.0000.00817.41
8.1.90.0000.00717.35
8.1.80.0000.00717.46
8.1.70.0040.00417.37
8.1.60.0080.00017.41
8.1.50.0050.00317.57
8.1.40.0000.00817.53
8.1.30.0000.00817.55
8.1.20.0000.00717.61
8.1.10.0040.00417.50
8.1.00.0030.00517.54
8.0.300.0000.00820.30
8.0.290.0070.00016.75
8.0.280.0000.00818.45
8.0.270.0030.00317.13
8.0.260.0030.00317.30
8.0.250.0000.00716.97
8.0.240.0030.00316.97
8.0.230.0080.00016.91
8.0.220.0070.00016.81
8.0.210.0080.00016.91
8.0.200.0040.00416.94
8.0.190.0090.00316.97
8.0.180.0000.00716.89
8.0.170.0000.00816.83
8.0.160.0030.00316.88
8.0.150.0030.00316.88
8.0.140.0040.00416.76
8.0.130.0060.00013.30
8.0.120.0040.00416.89
8.0.110.0000.00716.76
8.0.100.0000.00716.80
8.0.90.0040.00416.76
8.0.80.0030.01216.95
8.0.70.0040.00416.86
8.0.60.0000.00816.93
8.0.50.0040.00416.93
8.0.30.0110.00616.93
8.0.20.0100.00817.40
8.0.10.0000.00717.00
8.0.00.0110.00616.75
7.4.330.0000.00516.79
7.4.320.0030.00316.51
7.4.300.0060.00316.50
7.4.290.0030.00316.49
7.4.280.0040.00416.60
7.4.270.0030.00316.59
7.4.260.0000.00716.61
7.4.250.0050.00216.54
7.4.240.0010.00616.61
7.4.230.0040.00416.68
7.4.220.0110.00816.50
7.4.210.0030.01116.58
7.4.200.0030.00316.57
7.4.160.0150.00016.63
7.4.150.0060.01217.40
7.4.140.0090.01217.86
7.4.130.0070.01116.42
7.4.120.0150.00416.46
7.4.110.0120.00616.54
7.4.100.0090.00916.55
7.4.90.0000.01716.61
7.4.80.0130.00719.39
7.4.70.0120.00416.58
7.4.60.0110.00616.52
7.4.50.0040.01116.26
7.4.40.0110.00716.56
7.4.30.0030.01616.45
7.4.00.0090.00915.04
7.3.330.0030.00313.25
7.3.320.0000.00713.12
7.3.310.0030.00316.41
7.3.300.0030.00316.23
7.3.290.0100.00616.30
7.3.280.0050.01216.31
7.3.270.0100.00717.40
7.3.260.0090.00916.43
7.3.250.0120.00716.49
7.3.240.0100.00616.41
7.3.230.0040.01216.55
7.3.210.0060.01016.60
7.3.200.0130.00716.33
7.3.190.0100.00616.40
7.3.180.0160.00616.47
7.3.170.0000.01916.57
7.3.160.0100.00616.36
7.3.120.0080.00814.85
7.3.110.0050.01314.99
7.3.100.0120.00714.78
7.3.90.0110.00514.79
7.3.80.0050.00914.65
7.3.70.0080.00914.78
7.3.60.0050.00614.88
7.3.50.0070.00814.88
7.3.40.0050.00814.84
7.3.30.0020.01114.71
7.3.20.0020.01016.73
7.3.10.0060.00616.47
7.3.00.0050.01016.52
7.2.330.0090.01216.52
7.2.320.0100.01016.68
7.2.310.0060.01016.41
7.2.300.0130.00316.56
7.2.290.0000.01716.79
7.2.250.0130.00515.03
7.2.240.0080.01215.21
7.2.230.0080.00915.13
7.2.220.0100.00314.84
7.2.210.0060.00815.07
7.2.200.0060.00314.98
7.2.190.0070.00715.09
7.2.180.0040.01015.00
7.2.170.0070.00814.85
7.2.160.0030.00914.90
7.2.150.0040.01117.11
7.2.140.0000.01816.81
7.2.130.0030.00616.68
7.2.120.0040.01116.97
7.2.110.0000.01417.10
7.2.100.0130.00316.91
7.2.90.0030.00916.55
7.2.80.0030.01216.99
7.2.70.0000.01416.91
7.2.60.0050.00916.70
7.2.50.0090.00616.83
7.2.40.0040.01216.90
7.2.30.0030.01216.89
7.2.20.0070.01016.80
7.2.10.0090.00616.66
7.2.00.0080.00618.16
7.1.330.0050.00915.60
7.1.320.0030.00915.78
7.1.310.0050.00815.81
7.1.300.0060.01015.81
7.1.290.0060.00815.75
7.1.280.0030.01115.61
7.1.270.0080.00315.92
7.1.260.0070.00715.68
7.1.250.0000.01416.01
7.1.200.0030.00715.80
7.1.100.0060.00618.39
7.1.70.0110.00017.17
7.1.60.0100.01319.44
7.1.50.0140.01017.10
7.1.00.0000.08022.51
7.0.200.0030.00616.85
7.0.60.0030.06719.79
7.0.50.0100.08717.83
7.0.40.0100.08019.98
7.0.30.0370.07720.05
7.0.20.0370.06720.18
7.0.10.0070.08320.27
7.0.00.0130.07720.04
5.6.280.0070.06020.86
5.6.210.0130.07320.62
5.6.200.0000.04318.11
5.6.190.0070.09320.60
5.6.180.0100.05720.56
5.6.170.0230.07720.53
5.6.160.0030.05720.54
5.6.150.0200.06718.22
5.6.140.0130.07718.19
5.6.130.0030.05718.18
5.6.120.0200.05721.00
5.6.110.0100.07021.14
5.6.100.0070.06320.97
5.6.90.0100.06320.99
5.6.80.0130.07720.37
5.5.350.0170.07320.32
5.5.340.0100.03717.95
5.5.330.0070.04320.16
5.5.320.0430.06720.28
5.5.310.0100.04720.31
5.5.300.0100.08017.91
5.5.290.0100.07718.00
5.5.280.0070.08720.96
5.5.270.0130.08020.75
5.5.260.0070.04720.89
5.5.250.0100.07320.78
5.5.240.0200.02720.26

preferences:
58.27 ms | 400 KiB | 5 Q