3v4l.org

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

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)
8.3.60.0110.00416.63
8.3.50.0050.01822.11
8.3.40.0070.01018.84
8.3.30.0070.00718.76
8.3.20.0040.00420.38
8.3.10.0000.00823.73
8.3.00.0040.00419.38
8.2.180.0140.00018.31
8.2.170.0110.00722.96
8.2.160.0030.01020.38
8.2.150.0060.00324.18
8.2.140.0080.00024.66
8.2.130.0050.00320.47
8.2.120.0050.00226.35
8.2.110.0080.00020.41
8.2.100.0090.00317.93
8.2.90.0000.00819.34
8.2.80.0030.00517.97
8.2.70.0040.00417.50
8.2.60.0090.00018.05
8.2.50.0050.00318.07
8.2.40.0070.00019.43
8.2.30.0000.00720.56
8.2.20.0000.00917.68
8.2.10.0000.00718.15
8.2.00.0000.00818.16
8.1.280.0090.00625.92
8.1.270.0030.00623.68
8.1.260.0040.00428.09
8.1.250.0030.00528.09
8.1.240.0050.00524.03
8.1.230.0030.00917.79
8.1.220.0000.00817.74
8.1.210.0090.00018.77
8.1.200.0040.00417.35
8.1.190.0040.00417.69
8.1.180.0040.00418.10
8.1.170.0060.00318.50
8.1.160.0040.00421.98
8.1.150.0060.00319.00
8.1.140.0090.00019.61
8.1.130.0000.00717.74
8.1.120.0000.00717.43
8.1.110.0040.00417.50
8.1.100.0000.00717.36
8.1.90.0040.00417.42
8.1.80.0040.00417.51
8.1.70.0070.00017.44
8.1.60.0060.00317.60
8.1.50.0000.00817.56
8.1.40.0040.00417.56
8.1.30.0040.00417.54
8.1.20.0030.00517.58
8.1.10.0060.00317.61
8.1.00.0000.00717.51
8.0.300.0040.00418.77
8.0.290.0090.00016.75
8.0.280.0000.00718.56
8.0.270.0030.00317.16
8.0.260.0000.00617.28
8.0.250.0030.00316.97
8.0.240.0000.00717.02
8.0.230.0030.00617.02
8.0.220.0060.00316.82
8.0.210.0050.00216.96
8.0.200.0060.00016.99
8.0.190.0040.00417.00
8.0.180.0040.00416.96
8.0.170.0000.00716.96
8.0.160.0030.00316.91
8.0.150.0080.00016.91
8.0.140.0000.00716.85
8.0.130.0000.00613.31
8.0.120.0040.00416.82
8.0.110.0020.00516.86
8.0.100.0040.00416.91
8.0.90.0030.00516.95
8.0.80.0070.01016.98
8.0.70.0040.00416.78
8.0.60.0030.00516.87
8.0.50.0040.00416.87
8.0.30.0120.00417.13
8.0.20.0110.00917.40
8.0.10.0040.00416.84
8.0.00.0070.01016.68
7.4.330.0050.00016.89
7.4.320.0030.00316.63
7.4.300.0000.00716.52
7.4.290.0000.00716.65
7.4.280.0000.00916.61
7.4.270.0070.00016.53
7.4.260.0070.00016.50
7.4.250.0040.00416.59
7.4.240.0000.00716.59
7.4.230.0030.00316.63
7.4.220.0090.00916.66
7.4.210.0080.00816.70
7.4.200.0040.00416.64
7.4.160.0090.01216.43
7.4.150.0150.00417.40
7.4.140.0130.00617.86
7.4.130.0050.01316.46
7.4.120.0090.00916.50
7.4.110.0070.01016.54
7.4.100.0030.01316.38
7.4.90.0090.00816.51
7.4.80.0030.01319.39
7.4.70.0030.01616.65
7.4.60.0080.00816.50
7.4.50.0000.01116.62
7.4.40.0000.01616.50
7.4.30.0030.01316.40
7.4.00.0040.01414.89
7.3.330.0030.00313.02
7.3.320.0020.00213.13
7.3.310.0070.00016.32
7.3.300.0000.00716.30
7.3.290.0080.00816.27
7.3.280.0110.00616.25
7.3.270.0080.00817.40
7.3.260.0090.00916.42
7.3.250.0110.00716.48
7.3.240.0130.00416.42
7.3.230.0140.00316.39
7.3.210.0060.01016.43
7.3.200.0090.00616.33
7.3.190.0140.00316.51
7.3.180.0080.00816.36
7.3.170.0110.01016.27
7.3.160.0030.01216.39
7.2.330.0060.01616.85
7.2.320.0090.00916.71
7.2.310.0170.00016.67
7.2.300.0060.01616.72
7.2.290.0090.00916.62
7.2.90.2210.01014.66
7.2.80.2240.00614.47
7.2.70.0670.01414.74
7.2.60.0590.01015.89
7.2.50.1290.01014.70
7.2.40.0370.01214.89
7.2.30.0990.01014.93
7.2.20.1790.01314.97
7.2.10.1130.00415.02
7.2.00.0840.01017.22
7.1.210.0580.00613.91
7.1.200.2140.01013.77
7.1.190.0990.00313.97
7.1.180.0490.01213.86
7.1.170.1740.00613.77
7.1.160.0100.00714.05
7.1.150.1340.00713.67
7.1.140.1420.00613.92
7.1.130.1370.00313.85
7.1.120.1740.00014.00
7.1.110.1160.00613.82
7.1.100.0640.00616.02
7.1.90.1250.01313.64
7.1.80.1760.00714.18
7.1.70.1130.01015.56
7.1.60.0760.01625.68
7.1.50.0560.01224.22
7.1.40.0290.01031.83
7.1.30.0400.00431.98
7.1.20.0390.01232.05
7.1.10.0170.00313.87
7.1.00.0440.03618.11
7.0.310.1180.00713.36
7.0.300.1280.01013.17
7.0.290.1260.00313.26
7.0.280.1670.00613.55
7.0.270.1680.00613.29
7.0.260.1790.00313.31
7.0.250.1000.00313.59
7.0.240.1160.01313.10
7.0.230.1400.01013.45
7.0.220.1230.01013.35
7.0.210.1010.01613.34
7.0.200.0150.00615.26
7.0.190.0720.00913.58
7.0.180.0530.00713.71
7.0.170.1000.00813.66
7.0.160.1340.01113.32
7.0.150.0040.01713.22
7.0.140.0080.01113.48
7.0.130.0130.00713.22
7.0.120.0480.00313.66
7.0.110.0830.01013.45
7.0.100.2120.00613.63
7.0.90.0540.00613.30
7.0.80.0100.01013.45
7.0.70.0140.00513.50
7.0.60.0120.04216.62
7.0.50.0760.02715.60
7.0.40.0060.04216.74
7.0.30.0100.02916.76
7.0.20.0430.03616.87
7.0.10.0280.04816.70
7.0.00.0100.04616.74
5.6.300.0100.00614.05
5.6.290.0090.01114.48
5.6.280.0100.02617.54
5.6.270.0060.00914.08
5.6.260.0170.00013.88
5.6.250.0090.00813.84
5.6.240.0040.01114.36
5.6.230.0100.00814.16
5.6.220.0050.01313.93
5.6.210.0070.02117.25
5.6.200.0030.03416.12
5.6.190.0030.02817.29
5.6.180.0250.02417.32
5.6.170.0190.03017.29
5.6.160.0080.02517.23
5.6.150.0080.02316.08
5.6.140.0040.02616.09
5.6.130.0130.02515.98
5.6.120.0070.02917.61
5.6.110.0090.03817.47
5.6.100.0080.03817.59
5.6.90.0090.04917.58
5.6.80.0100.04117.25
5.6.70.0080.00513.84
5.6.60.0100.00513.91
5.6.50.0090.00614.02
5.6.40.0070.00713.96
5.6.30.0080.00814.30
5.6.20.0120.00913.88
5.6.10.0060.00913.95
5.6.00.0070.01014.10
5.5.380.0050.00610.70
5.5.370.0070.00710.90
5.5.360.0040.01110.80
5.5.350.0160.04015.65
5.5.340.0080.02014.47
5.5.330.0060.02315.82
5.5.320.0030.04515.52
5.5.310.0160.02515.62
5.5.300.0090.03314.33
5.5.290.0050.02314.48
5.5.280.0070.04415.78
5.5.270.0060.04416.01
5.5.260.0060.03115.93
5.5.250.0100.02515.68
5.5.240.0160.04315.39
5.5.230.0000.00910.75
5.5.220.0070.00411.03
5.5.210.0080.00410.95
5.5.200.0040.00810.96
5.5.190.0000.01511.00
5.5.180.0090.00610.96
5.5.170.0090.00914.23
5.5.160.0100.00510.73
5.5.150.0110.00311.09
5.5.140.0080.00410.79
5.5.130.0090.00210.70
5.5.120.0000.01310.93
5.5.110.0090.00310.84
5.5.100.0000.01010.98
5.5.90.0100.00010.88
5.5.80.0080.00510.81
5.5.70.0040.00510.52
5.5.60.0100.00010.75
5.5.50.0000.01410.75
5.5.40.0020.00810.81
5.5.30.0000.01210.84
5.5.20.0080.00410.57
5.5.10.0090.00510.46
5.5.00.0070.00210.97

preferences:
55.6 ms | 401 KiB | 5 Q