3v4l.org

run code in 300+ PHP versions simultaneously
<?php $iterator = 10; $cat = array(1 => 'a',2 => 'b',3 => 'c'); foreach ($cat as $k => &$c)//observe the '&' { if ($iterator < 15) { $cat[$iterator] = $iterator; $iterator++; } echo $c; } var_dump($cat);

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)
8.3.70.0060.00918.18
8.3.60.0030.01218.55
8.3.50.0080.01222.05
8.3.40.0120.00318.75
8.3.30.0140.00319.09
8.3.20.0090.00020.20
8.3.10.0040.00422.09
8.3.00.0040.00422.34
8.2.180.0150.00416.63
8.2.170.0090.00922.96
8.2.160.0030.01019.34
8.2.150.0090.00024.18
8.2.140.0080.00024.66
8.2.130.0070.01026.16
8.2.120.0190.00019.11
8.2.110.0090.00022.19
8.2.100.0130.00019.64
8.2.90.0040.00419.22
8.2.80.0060.00318.16
8.2.70.0080.00017.63
8.2.60.0090.00018.03
8.2.50.0080.00018.07
8.2.40.0040.00418.22
8.2.30.0070.00018.07
8.2.20.0030.00617.73
8.2.10.0040.00419.41
8.2.00.0000.00817.80
8.1.280.0120.00325.92
8.1.270.0040.01122.03
8.1.260.0040.00426.35
8.1.250.0110.00328.09
8.1.240.0050.00523.84
8.1.230.0080.00319.10
8.1.220.0070.00317.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0060.00317.63
8.1.180.0030.00518.10
8.1.170.0000.00818.65
8.1.160.0000.00921.91
8.1.150.0070.00018.62
8.1.140.0040.00417.45
8.1.130.0040.00417.80
8.1.120.0040.00417.50
8.1.110.0070.00017.48
8.1.100.0080.00017.45
8.1.90.0000.00717.48
8.1.80.0040.00417.43
8.1.70.0040.00417.41
8.1.60.0110.00017.45
8.1.50.0000.00717.58
8.1.40.0040.00417.54
8.1.30.0000.00717.62
8.1.20.0000.00817.60
8.1.10.0040.00417.57
8.1.00.0040.00417.49
8.0.300.0080.00018.77
8.0.290.0080.00017.15
8.0.280.0000.00718.45
8.0.270.0000.00717.11
8.0.260.0000.00616.79
8.0.250.0000.00716.86
8.0.240.0080.00216.96
8.0.230.0070.00016.90
8.0.220.0050.00316.79
8.0.210.0070.00016.80
8.0.200.0000.00616.96
8.0.190.0040.00416.91
8.0.180.0000.00816.89
8.0.170.0000.00816.95
8.0.160.0060.00316.89
8.0.150.0080.00016.85
8.0.140.0070.00016.86
8.0.130.0030.00313.40
8.0.120.0040.00416.89
8.0.110.0000.00716.80
8.0.100.0000.00716.84
8.0.90.0070.00016.71
8.0.80.0110.01116.88
8.0.70.0040.00416.76
8.0.60.0050.00316.87
8.0.50.0030.00516.92
8.0.30.0130.01017.01
8.0.20.0110.01117.40
8.0.10.0040.00416.82
8.0.00.0090.01016.60
7.4.330.0060.00015.00
7.4.320.0040.00416.42
7.4.300.0040.00416.42
7.4.290.0040.00416.52
7.4.280.0040.00416.59
7.4.270.0030.00316.55
7.4.260.0030.00316.48
7.4.250.0070.00016.45
7.4.240.0070.00016.56
7.4.230.0030.00316.61
7.4.220.0120.00616.71
7.4.210.0070.00916.63
7.4.200.0040.00416.59
7.4.190.0070.00016.76
7.4.160.0060.01016.59
7.4.150.0130.00617.40
7.4.140.0110.00617.86
7.4.130.0110.01116.51
7.4.120.0150.00316.44
7.4.110.0120.00416.32
7.4.100.0150.00816.56
7.4.90.0080.00816.38
7.4.80.0090.00919.39
7.4.70.0090.00816.50
7.4.60.0080.00816.38
7.4.50.0030.00516.28
7.4.40.0060.00622.77
7.4.30.0060.01516.14
7.4.00.0070.00914.93
7.3.330.0030.00313.08
7.3.320.0050.00013.00
7.3.310.0000.00716.32
7.3.300.0060.00016.36
7.3.290.0080.00816.28
7.3.280.0100.00816.30
7.3.270.0140.01017.40
7.3.260.0100.01216.36
7.3.250.0120.00516.50
7.3.240.0080.00816.43
7.3.230.0100.00616.51
7.3.210.0260.01016.58
7.3.200.0070.01019.39
7.3.190.0060.01016.58
7.3.180.0080.00816.23
7.3.170.0110.01116.43
7.3.160.0100.00616.32
7.3.120.0080.00914.72
7.3.110.0070.01014.91
7.3.100.0070.01014.90
7.3.90.0030.01014.90
7.3.80.0090.00615.10
7.3.70.0000.01114.96
7.3.60.0000.01314.65
7.3.50.0040.00814.77
7.3.40.0000.01514.95
7.3.30.0040.00814.84
7.3.20.0070.00716.82
7.3.10.0080.00616.48
7.3.00.0040.01116.69
7.2.330.0050.01416.52
7.2.320.0070.01116.38
7.2.310.0060.01216.77
7.2.300.0040.01216.73
7.2.290.0140.00316.55
7.2.250.0070.01015.28
7.2.240.0070.01115.23
7.2.230.0060.01015.00
7.2.220.0060.00614.94
7.2.210.0060.00614.88
7.2.200.0000.01114.99
7.2.190.0060.00314.96
7.2.180.0100.00714.81
7.2.170.0070.00715.06
7.2.130.0030.00917.03
7.2.120.0070.01016.98
7.2.110.0120.00416.84
7.2.100.0100.00316.96
7.2.90.0030.00717.00
7.2.80.0070.01116.86
7.2.70.0110.00717.00
7.2.60.0000.01416.91
7.2.50.0040.01116.79
7.2.40.0070.00316.93
7.2.30.0070.00716.67
7.2.20.0030.00917.10
7.2.10.0080.00416.94
7.2.00.0060.00818.21
7.1.330.0080.00615.68
7.1.320.0100.00015.79
7.1.310.0030.00715.72
7.1.300.0060.00815.78
7.1.290.0030.01016.00
7.1.280.0080.00015.97
7.1.270.0100.00315.88
7.1.260.0040.01115.85
7.1.250.0130.00715.91
7.1.100.0030.01018.32
7.1.70.0100.00317.01
7.1.60.0030.02119.82
7.1.50.0040.00717.04
7.1.00.0030.07722.31
7.0.200.0080.00816.87
7.0.140.0030.07022.00
7.0.60.0000.04720.04
7.0.50.0070.04017.89
7.0.40.0100.05020.08
7.0.30.0430.04320.38
7.0.20.0200.04320.09
7.0.10.0130.05720.13
7.0.00.0030.04020.18
5.6.280.0030.06720.91
5.6.210.0030.07720.64
5.6.200.0030.08318.22
5.6.190.0100.06320.77
5.6.180.0570.06020.61
5.6.170.0170.04320.35
5.6.160.0100.06020.51
5.6.150.0100.03718.18
5.6.140.0070.04018.14
5.6.130.0070.06718.11
5.6.120.0100.08320.94
5.6.110.0030.08320.98
5.6.100.0200.07020.98
5.6.90.0170.07020.98
5.6.80.0000.08020.41
5.5.350.0130.08320.52
5.5.340.0100.07717.88
5.5.330.0070.07320.07
5.5.320.0400.06720.26
5.5.310.0170.05020.50
5.5.300.0000.06318.01
5.5.290.0130.07717.94
5.5.280.0170.07320.89
5.5.270.0100.07720.91
5.5.260.0100.08020.79
5.5.250.0030.06320.71
5.5.240.0130.07720.27
5.4.450.0830.03019.42
5.4.440.0100.04019.43
5.4.430.1000.03319.56
5.4.420.0800.05719.42
5.4.410.0430.03719.13
5.4.400.0830.04719.11
5.4.390.0630.05318.81
5.4.380.0270.06318.77
5.4.370.0330.05318.67
5.4.360.0270.05318.77
5.4.350.0300.05018.50
5.4.340.0270.05318.67
5.4.320.0050.04512.46
5.4.310.0040.04412.45
5.4.300.0050.04012.46
5.4.290.0070.03912.45
5.4.280.0050.03612.35
5.4.270.0030.07018.90
5.4.260.0130.07319.13
5.4.250.0100.08318.94
5.4.240.0170.06718.81
5.4.230.0000.07019.03
5.4.220.0100.07318.92
5.4.210.0100.06318.90
5.4.200.0070.07718.96
5.4.190.0130.05318.87
5.4.180.0030.05718.75
5.4.170.0030.07318.99
5.4.160.0130.07019.02
5.4.150.0130.06318.95
5.4.140.0130.05316.33
5.4.130.0030.05716.56
5.4.120.0070.06716.49
5.4.110.0100.06016.54
5.4.100.0100.06716.59
5.4.90.0130.05016.48
5.4.80.0070.05316.30
5.4.70.0130.06316.30
5.4.60.0100.06016.46
5.4.50.0100.05016.24
5.4.40.0170.05316.63
5.4.30.0100.05016.27
5.4.20.0030.06016.54
5.4.10.0100.05316.54
5.4.00.0030.06715.96
5.3.290.0070.03712.80
5.3.280.0100.07314.52
5.3.270.0070.05314.59
5.3.260.0130.05014.64
5.3.250.0000.06314.59
5.3.240.0130.05714.71
5.3.230.0030.05314.79
5.3.220.0130.06314.76
5.3.210.0130.05314.68
5.3.200.0170.06314.70
5.3.190.0100.05014.55
5.3.180.0100.05314.71
5.3.170.0200.06314.55
5.3.160.0130.06314.65
5.3.150.0000.09014.72
5.3.140.0100.06014.75
5.3.130.0030.08714.61
5.3.120.0100.05314.61
5.3.110.0070.07014.70
5.3.100.0170.07314.17
5.3.90.0200.04014.18
5.3.80.0100.05314.00
5.3.70.0100.06014.00
5.3.60.0130.06314.19
5.3.50.0030.05314.03
5.3.40.0100.05313.93
5.3.30.0170.04313.89
5.3.20.0200.06013.67
5.3.10.0130.05713.69
5.3.00.0170.06013.79
5.2.170.0070.06010.97
5.2.160.0170.05311.29
5.2.150.0100.04011.13
5.2.140.0070.06711.29
5.2.130.0130.05311.21
5.2.120.0130.04711.04
5.2.110.0200.04711.32
5.2.100.0070.04711.29
5.2.90.0100.05711.22
5.2.80.0000.06711.32
5.2.70.0100.04011.23
5.2.60.0170.03711.16
5.2.50.0130.05711.07
5.2.40.0030.05311.12
5.2.30.0100.04711.12
5.2.20.0130.04710.89
5.2.10.0100.04010.91
5.2.00.0030.05310.84
5.1.60.0100.04310.27
5.1.50.0000.0379.87
5.1.40.0030.03710.05
5.1.30.0000.04310.61
5.1.20.0030.04310.50
5.1.10.0100.03710.26
5.1.00.0070.04710.36
5.0.50.0100.0238.68
5.0.40.0000.0338.60
5.0.30.0200.0438.52
5.0.20.0000.0338.45
5.0.10.0030.0338.46
5.0.00.0030.0538.22
4.4.90.0100.0207.20
4.4.80.0100.0177.20
4.4.70.0000.0237.20
4.4.60.0070.0237.20
4.4.50.0030.0207.20
4.4.40.0030.0477.20
4.4.30.0030.0237.20
4.4.20.0000.0277.20
4.4.10.0030.0237.20
4.4.00.0100.0437.20
4.3.110.0070.0237.20
4.3.100.0030.0277.20
4.3.90.0030.0207.20
4.3.80.0070.0337.20
4.3.70.0100.0137.20
4.3.60.0070.0207.20
4.3.50.0030.0307.20
4.3.40.0070.0437.20
4.3.30.0030.0237.20
4.3.20.0000.0277.20
4.3.10.0030.0277.20
4.3.00.0070.02015.58

preferences:
51.42 ms | 401 KiB | 5 Q