3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(1 => 'a', 2 => 'b', 3 => 'c'); foreach($arr as $k => $v) { echo $k.$v; unset($v); var_dump($arr); } var_dump($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)
8.3.60.0150.00616.63
8.3.50.0120.00622.08
8.3.40.0140.00018.67
8.3.30.0090.00618.78
8.3.20.0040.00420.12
8.3.10.0000.00823.65
8.3.00.0050.00320.94
8.2.180.0150.00018.31
8.2.170.0090.00622.96
8.2.160.0100.00320.47
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0110.00726.16
8.2.120.0080.00022.20
8.2.110.0070.00322.11
8.2.100.0060.00617.78
8.2.90.0030.00519.05
8.2.80.0080.00018.04
8.2.70.0050.00517.50
8.2.60.0030.00617.93
8.2.50.0000.00818.07
8.2.40.0000.00818.16
8.2.30.0000.00717.92
8.2.20.0050.00317.71
8.2.10.0040.00419.42
8.2.00.0040.00417.84
8.1.280.0060.01225.92
8.1.270.0050.00323.88
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00923.98
8.1.230.0030.00820.86
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0040.00417.13
8.1.190.0080.00017.40
8.1.180.0050.00318.10
8.1.170.0030.00718.51
8.1.160.0070.00021.99
8.1.150.0060.00318.54
8.1.140.0070.00017.32
8.1.130.0000.00817.84
8.1.120.0000.00717.39
8.1.110.0050.00317.47
8.1.100.0070.00017.34
8.1.90.0070.00017.32
8.1.80.0000.00717.46
8.1.70.0040.00417.36
8.1.60.0000.00917.45
8.1.50.0000.00817.52
8.1.40.0000.00717.50
8.1.30.0040.00417.62
8.1.20.0080.00017.57
8.1.10.0000.00717.45
8.1.00.0080.00417.32
8.0.300.0080.00018.77
8.0.290.0070.00017.16
8.0.280.0070.00018.36
8.0.270.0030.00317.24
8.0.260.0070.00016.85
8.0.250.0030.00316.95
8.0.240.0000.00816.89
8.0.230.0000.00717.04
8.0.220.0000.00616.90
8.0.210.0040.00416.78
8.0.200.0000.00616.95
8.0.190.0000.00816.82
8.0.180.0050.00216.93
8.0.170.0040.00416.91
8.0.160.0030.00516.82
8.0.150.0030.00516.87
8.0.140.0000.00716.74
8.0.130.0000.00613.26
8.0.120.0040.00416.82
8.0.110.0050.00216.86
8.0.100.0000.00716.84
8.0.90.0020.00516.76
8.0.80.0120.00316.84
8.0.70.0030.00516.74
8.0.60.0000.00716.75
8.0.50.0000.00816.94
8.0.30.0140.00616.91
8.0.20.0150.01217.40
8.0.10.0000.00917.00
8.0.00.0070.01216.78
7.4.330.0000.00615.03
7.4.320.0030.00316.39
7.4.300.0000.00616.48
7.4.290.0000.00716.48
7.4.280.0040.00416.48
7.4.270.0000.00616.60
7.4.260.0060.00316.58
7.4.250.0070.00016.60
7.4.240.0020.00516.50
7.4.230.0080.00016.46
7.4.220.0090.00916.62
7.4.210.0050.01016.56
7.4.200.0030.00316.49
7.4.190.0000.00816.58
7.4.160.0080.00816.40
7.4.150.0130.00517.40
7.4.140.0100.00717.86
7.4.130.0080.00916.34
7.4.120.0110.01016.43
7.4.110.0120.00616.50
7.4.100.0090.00916.64
7.4.90.0090.01716.57
7.4.80.0030.01519.39
7.4.70.0040.01316.43
7.4.60.0150.00416.31
7.4.50.0000.00816.43
7.4.40.0070.01022.77
7.4.30.0160.00016.32
7.4.10.0070.01014.97
7.4.00.0050.01114.80
7.3.330.0030.00312.98
7.3.320.0000.00513.04
7.3.310.0030.00316.32
7.3.300.0000.00716.26
7.3.290.0100.00516.28
7.3.280.0080.01016.24
7.3.270.0140.00317.40
7.3.260.0120.00616.56
7.3.250.0130.00516.35
7.3.240.0100.00716.32
7.3.230.0130.00316.39
7.3.210.0050.01116.56
7.3.200.0100.01019.39
7.3.190.0100.00616.19
7.3.180.0100.00616.51
7.3.170.0140.00316.36
7.3.160.0070.01016.32
7.3.130.0060.01214.80
7.3.120.0030.01215.00
7.3.110.0070.01214.93
7.3.100.0050.00715.04
7.3.90.0050.01114.75
7.3.80.0080.00814.81
7.3.70.0080.00514.70
7.3.60.0100.00514.71
7.3.50.0100.00614.85
7.3.40.0060.00814.71
7.3.30.0070.00714.82
7.3.20.0050.00916.74
7.3.10.0030.01016.72
7.3.00.0050.00816.49
7.2.330.0110.00716.34
7.2.320.0070.01016.43
7.2.310.0030.01616.52
7.2.300.0070.01016.77
7.2.290.0040.01416.68
7.2.260.0030.01314.89
7.2.250.0040.01214.98
7.2.240.0080.01014.88
7.2.230.0080.00814.89
7.2.220.0090.00514.94
7.2.210.0050.00614.92
7.2.200.0080.00614.85
7.2.190.0040.01114.94
7.2.180.0030.00914.82
7.2.170.0030.01115.06
7.2.160.0090.00615.06
7.2.150.0130.00016.87
7.2.140.0000.01516.75
7.2.130.0070.00716.81
7.2.120.0050.00516.80
7.2.110.0060.00316.90
7.2.100.0030.00716.67
7.2.90.0110.00716.66
7.2.80.0060.01216.78
7.2.70.0030.01016.92
7.2.60.0070.00716.80
7.2.50.0000.01016.79
7.2.40.0040.00416.88
7.2.30.0130.00016.98
7.2.20.0110.01116.71
7.2.10.0100.00716.81
7.2.00.0050.01018.23
7.1.330.0060.00815.87
7.1.320.0060.00715.82
7.1.310.0080.00315.64
7.1.300.0020.01015.78
7.1.290.0100.00515.81
7.1.280.0060.00715.80
7.1.270.0090.00615.83
7.1.260.0050.01015.78
7.1.250.0030.00915.89
7.1.240.0030.00615.74
7.1.230.0090.00315.83
7.1.220.0030.00615.79
7.1.210.0040.00915.83
7.1.200.0070.00715.79
7.1.190.0090.00615.58
7.1.180.0030.01015.73
7.1.170.0070.00715.87
7.1.160.0050.00515.85
7.1.150.0110.00415.70
7.1.140.0130.00715.76
7.1.130.0070.00315.87
7.1.120.0000.01215.80
7.1.110.0070.00715.79
7.1.100.0030.01117.03
7.1.90.0040.00715.75
7.1.80.0070.00715.56
7.1.70.0050.00716.41
7.1.60.0040.01317.46
7.1.50.0110.01225.11
7.1.40.0000.00815.83
7.1.30.0100.00015.48
7.1.20.0040.00815.92
7.1.10.0060.00915.46
7.1.00.0070.03519.02
7.0.330.0070.00715.48
7.0.320.0000.01115.38
7.0.310.0080.00415.49
7.0.300.0100.00315.58
7.0.290.0040.00415.51
7.0.280.0000.00915.45
7.0.270.0040.00715.45
7.0.260.0030.01015.14
7.0.250.0090.00615.44
7.0.240.0030.00615.46
7.0.230.0080.00415.14
7.0.220.0140.00015.50
7.0.210.0000.00815.50
7.0.200.0030.00816.02
7.0.190.0030.01015.50
7.0.180.0050.00515.56
7.0.170.0000.00915.46
7.0.160.0100.00315.37
7.0.150.0060.00315.41
7.0.140.0080.03718.68
7.0.130.0060.00915.56
7.0.120.0080.00315.50
7.0.110.0000.01215.57
7.0.100.0060.00615.40
7.0.90.0090.00615.45
7.0.80.0070.00715.40
7.0.70.0040.00815.37
7.0.60.0090.02217.61
7.0.50.0110.03016.70
7.0.40.0070.02316.95
7.0.30.0150.04516.95
7.0.20.0140.03816.62
7.0.10.0190.04116.83
7.0.00.0080.02516.69
5.6.400.0030.01114.22
5.6.390.0030.00914.35
5.6.380.0060.00914.47
5.6.370.0040.00714.20
5.6.360.0000.00914.51
5.6.350.0030.00814.45
5.6.340.0110.00414.45
5.6.330.0040.00813.97
5.6.320.0070.00714.49
5.6.310.0080.00014.27
5.6.300.0000.00914.50
5.6.290.0070.00714.68
5.6.280.0060.03817.74
5.6.270.0030.01014.50
5.6.260.0030.00714.35
5.6.250.0100.00714.31
5.6.240.0070.00714.37
5.6.230.0030.00614.11
5.6.220.0090.00614.27
5.6.210.0050.04217.47
5.6.200.0090.02216.25
5.6.190.0040.02717.48
5.6.180.2120.02617.48
5.6.170.0120.03017.48
5.6.160.0100.03517.37
5.6.150.0080.04016.25
5.6.140.0030.02216.13
5.6.130.0070.04716.26
5.6.120.0050.02517.70
5.6.110.0100.04017.56
5.6.100.0110.03117.53
5.6.90.0110.03517.51
5.6.80.0200.03517.22
5.6.70.0130.02517.24
5.6.60.0040.01114.22
5.6.50.0090.00314.14
5.6.40.0040.01114.56
5.6.30.0090.00914.21
5.6.20.0000.01414.25
5.6.10.0120.00614.30
5.6.00.0100.00714.26
5.5.380.0000.01514.23
5.5.370.0060.00614.11
5.5.360.0000.01314.29
5.5.350.0180.04317.28
5.5.340.0070.02616.09
5.5.330.0070.04117.20
5.5.320.0130.02917.28
5.5.310.0220.03817.17
5.5.300.0020.03915.86
5.5.290.0090.04515.98
5.5.280.0080.02717.77
5.5.270.0050.02717.65
5.5.260.0110.04117.45
5.5.250.0080.03217.20
5.5.240.0070.03517.26
5.5.230.0040.01114.01
5.5.220.0070.00714.21
5.5.210.0100.00314.39
5.5.200.0030.00914.18
5.5.190.0040.01214.29
5.5.180.0070.01014.10
5.5.170.0090.00613.88
5.5.160.0070.01014.23
5.5.150.0000.01014.10
5.5.140.0040.00714.03
5.5.130.0030.01013.95
5.5.120.0070.01014.11
5.5.110.0130.00314.16
5.5.100.0030.01014.08
5.5.90.0000.01313.97
5.5.80.0070.00313.98
5.5.70.0080.00814.01
5.5.60.0030.00714.25
5.5.50.0000.01414.20
5.5.40.0040.01113.98
5.5.30.0120.00314.00
5.5.20.0000.01214.17
5.5.10.0000.00913.84
5.5.00.0070.00314.15
5.4.450.0040.02315.27
5.4.440.0000.02515.01
5.4.430.0080.03515.25
5.4.420.0020.04314.99
5.4.410.0050.04315.18
5.4.400.0090.03115.02
5.4.390.0120.02514.84
5.4.380.0050.03314.91
5.4.370.0020.04015.01
5.4.360.0050.03815.06
5.4.350.0050.04514.98
5.4.340.0030.03015.02
5.4.330.0030.01010.77
5.4.320.0120.02314.88
5.4.310.0000.03215.00
5.4.300.0050.02514.95
5.4.290.0100.03014.90
5.4.280.0060.03114.92
5.4.270.0030.03814.93
5.4.260.0000.04314.93
5.4.250.0170.03415.01
5.4.240.0020.02414.95
5.4.230.0090.01715.10
5.4.220.0030.03714.99
5.4.210.0020.02615.04
5.4.200.0030.02614.91
5.4.190.0020.02414.82
5.4.180.0040.03714.84
5.4.170.0080.03815.07
5.4.160.0050.02915.00
5.4.150.0070.02515.06
5.4.140.0030.02813.64
5.4.130.0050.03813.59
5.4.120.0020.02813.74
5.4.110.0080.03513.50
5.4.100.0030.02813.67
5.4.90.0030.04013.52
5.4.80.0030.03913.76
5.4.70.0070.03713.57
5.4.60.0020.03813.56
5.4.50.0050.03713.62
5.4.40.0070.03313.48
5.4.30.0030.03713.40
5.4.20.0050.03313.53
5.4.10.0030.03513.62
5.4.00.0020.02513.26
5.3.290.0050.02712.63
5.3.280.0020.03912.65
5.3.270.0060.03312.66
5.3.260.0020.04512.61
5.3.250.0000.04312.61
5.3.240.0000.03012.73
5.3.230.0010.03312.60
5.3.220.0070.02812.65
5.3.210.0080.02112.61
5.3.200.0150.03612.65
5.3.190.0050.04012.59
5.3.180.0050.03812.64
5.3.170.0050.04112.64
5.3.160.0050.04012.59
5.3.150.0020.02912.72
5.3.140.0070.04012.71
5.3.130.0030.03312.63
5.3.120.0020.03512.63
5.3.110.0090.03512.63
5.3.100.0070.02712.32
5.3.90.0030.02712.32
5.3.80.0020.04312.38
5.3.70.0000.03712.35
5.3.60.0030.03512.32
5.3.50.0030.04312.33
5.3.40.0030.03912.31
5.3.30.0030.03012.35
5.3.20.0060.03712.20
5.3.10.0110.03312.21
5.3.00.0000.04112.18
5.2.170.0070.02712.00
5.2.160.0000.03712.00
5.2.150.0000.05712.00
5.2.140.0000.05012.00
5.2.130.0030.04712.00
5.2.120.0000.04312.00
5.2.110.0000.06312.00
5.2.100.0030.06012.00
5.2.90.0070.05312.00
5.2.80.0030.04712.00
5.2.70.0070.05712.00
5.2.60.0070.04012.00
5.2.50.0070.05712.00
5.2.40.0030.06012.00
5.2.30.0030.06012.00
5.2.20.0030.06312.00
5.2.10.0070.05012.00
5.2.00.0070.05712.00
5.1.60.0000.05012.00
5.1.50.0000.05012.00
5.1.40.0000.03712.00
5.1.30.0030.05312.00
5.1.20.0000.06312.00
5.1.10.0100.04012.00
5.1.00.0030.06012.00
5.0.50.0030.04312.00
5.0.40.0000.03012.00
5.0.30.0000.05712.00
5.0.20.0030.03712.00
5.0.10.0030.02712.00
5.0.00.0000.03712.00
4.4.90.0030.03312.00
4.4.80.0000.03712.00
4.4.70.0030.03012.00
4.4.60.0000.03312.00
4.4.50.0070.03312.00
4.4.40.0000.03712.00
4.4.30.0070.02012.00
4.4.20.0030.03712.00
4.4.10.0000.02712.00
4.4.00.0030.05312.00
4.3.110.0000.03712.00
4.3.100.0030.02012.00
4.3.90.0030.01712.00
4.3.80.0000.04712.00
4.3.70.0030.03312.00
4.3.60.0030.03312.00
4.3.50.0000.03012.00
4.3.40.0000.05312.00
4.3.30.0070.03012.00
4.3.20.0000.02712.00
4.3.10.0000.02312.00
4.3.00.0030.03312.00

preferences:
42.88 ms | 401 KiB | 5 Q