3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('1', '2', '3', '4'); foreach ($arr as $key=>&$val) { $arr[3] = '999'; echo $val."\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)
8.3.60.0070.00716.63
8.3.50.0100.00821.95
8.3.40.0150.00018.71
8.3.30.0130.00019.21
8.3.20.0070.00020.20
8.3.10.0050.00223.61
8.3.00.0050.00319.27
8.2.180.0200.00316.74
8.2.170.0100.00322.96
8.2.160.0110.00320.45
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0030.00522.10
8.2.110.0000.01219.30
8.2.100.0080.00417.91
8.2.90.0050.00517.84
8.2.80.0000.00817.97
8.2.70.0040.00417.63
8.2.60.0040.00417.93
8.2.50.0000.01318.07
8.2.40.0000.00818.05
8.2.30.0050.00218.04
8.2.20.0040.00417.80
8.2.10.0000.00718.03
8.2.00.0070.00417.72
8.1.280.0120.00325.92
8.1.270.0060.00323.91
8.1.260.0020.00526.35
8.1.250.0070.00028.09
8.1.240.0090.00022.61
8.1.230.0070.00321.04
8.1.220.0030.00617.77
8.1.210.0000.00818.97
8.1.200.0000.00917.35
8.1.190.0090.00017.54
8.1.180.0050.00318.10
8.1.170.0040.00418.51
8.1.160.0050.00322.05
8.1.150.0000.00718.55
8.1.140.0040.00417.46
8.1.130.0030.00317.75
8.1.120.0040.00417.48
8.1.110.0000.01017.37
8.1.100.0040.00417.45
8.1.90.0020.00517.29
8.1.80.0070.00017.52
8.1.70.0030.00517.40
8.1.60.0060.00617.46
8.1.50.0040.00417.40
8.1.40.0040.00417.50
8.1.30.0040.00417.51
8.1.20.0040.00417.66
8.1.10.0040.00417.46
8.1.00.0040.00417.49
8.0.300.0000.00719.80
8.0.290.0000.00717.18
8.0.280.0030.00318.46
8.0.270.0040.00417.23
8.0.260.0000.00717.18
8.0.250.0000.00716.97
8.0.240.0000.00716.84
8.0.230.0000.00716.96
8.0.220.0000.00716.79
8.0.210.0000.00716.90
8.0.200.0040.00416.92
8.0.190.0050.00316.93
8.0.180.0000.00716.79
8.0.170.0000.00816.90
8.0.160.0070.00016.88
8.0.150.0000.00816.70
8.0.140.0050.00316.82
8.0.130.0000.00613.28
8.0.120.0050.00316.77
8.0.110.0000.00716.88
8.0.100.0000.00816.83
8.0.90.0040.00416.71
8.0.80.0100.01016.85
8.0.70.0000.00716.76
8.0.60.0040.00416.85
8.0.50.0040.00416.79
8.0.30.0060.01317.17
8.0.20.0120.01017.40
8.0.10.0040.00417.02
8.0.00.0080.01116.91
7.4.330.0050.00315.00
7.4.320.0060.00016.36
7.4.300.0000.00616.58
7.4.290.0030.00316.55
7.4.280.0070.00016.61
7.4.270.0040.00416.64
7.4.260.0000.00816.38
7.4.250.0040.00416.54
7.4.240.0020.00516.49
7.4.230.0070.00016.34
7.4.220.0070.01116.62
7.4.210.0050.01216.57
7.4.200.0000.00716.39
7.4.190.0070.00016.72
7.4.160.0080.00816.58
7.4.150.0100.01017.40
7.4.140.0110.01017.86
7.4.130.0090.00716.50
7.4.120.0110.00716.54
7.4.110.0130.01016.71
7.4.100.0030.01716.41
7.4.90.0120.00616.45
7.4.80.0080.00819.39
7.4.70.0040.01416.56
7.4.60.0080.00816.53
7.4.50.0030.00516.63
7.4.40.0030.01222.77
7.4.30.0080.00816.61
7.4.00.0110.00014.92
7.3.330.0030.00313.08
7.3.320.0020.00213.22
7.3.310.0030.00516.26
7.3.300.0000.00716.21
7.3.290.0030.01116.37
7.3.280.0080.01016.32
7.3.270.0070.01017.40
7.3.260.0100.00716.30
7.3.250.0100.00816.61
7.3.240.0000.01716.36
7.3.230.0150.00616.39
7.3.210.0000.01616.31
7.3.200.0170.00819.39
7.3.190.0090.00916.61
7.3.180.0060.00916.52
7.3.170.0080.01216.50
7.3.160.0070.01016.38
7.3.120.0080.00814.86
7.3.10.0030.01016.71
7.3.00.0080.00816.70
7.2.330.0030.01316.72
7.2.320.0030.01416.46
7.2.310.0190.00316.71
7.2.300.0110.01116.36
7.2.290.0110.00516.23
7.2.130.0060.00816.84
7.2.120.0070.00716.70
7.2.110.0090.00516.77
7.2.100.0090.00616.74
7.2.90.0110.00216.61
7.2.80.0060.00616.60
7.2.70.0060.00716.65
7.2.60.0070.00716.82
7.2.50.0050.00816.80
7.2.40.0090.00916.70
7.2.30.0130.00316.94
7.2.20.0050.00716.80
7.2.10.0050.00716.86
7.2.00.0060.00917.68
7.1.250.0080.00415.73
7.1.240.0060.00515.72
7.1.230.0070.00315.71
7.1.220.0050.00915.82
7.1.210.0080.00815.57
7.1.200.0040.01015.74
7.1.190.0080.00315.75
7.1.180.0050.00815.86
7.1.170.0080.00715.73
7.1.160.0100.00315.93
7.1.150.0100.00315.48
7.1.140.0070.00215.76
7.1.130.0030.00715.59
7.1.120.0050.00715.73
7.1.110.0070.00915.81
7.1.100.0060.00716.62
7.1.90.0050.00715.55
7.1.80.0070.00515.84
7.1.70.0060.00516.20
7.1.60.0080.00716.83
7.1.50.0080.00516.12
7.1.40.0040.00715.69
7.1.30.0090.00715.66
7.1.20.0020.00915.84
7.1.10.0060.01015.66
7.1.00.0050.03017.98
7.0.330.0080.00715.30
7.0.320.0050.00715.31
7.0.310.0090.00115.34
7.0.300.0070.00415.24
7.0.290.0080.00615.20
7.0.280.0060.00815.33
7.0.270.0060.00615.29
7.0.260.0090.00315.26
7.0.250.0050.00515.36
7.0.240.0090.00515.30
7.0.230.0050.00915.44
7.0.220.0000.00915.38
7.0.210.0120.00515.39
7.0.200.0070.00515.89
7.0.190.0030.01015.31
7.0.180.0070.00415.33
7.0.170.0040.00715.36
7.0.160.0050.00615.24
7.0.150.0030.00815.15
7.0.140.0060.02817.60
7.0.130.0060.00615.52
7.0.120.0040.00515.25
7.0.110.0020.01215.29
7.0.100.0090.00715.36
7.0.90.0040.01015.30
7.0.80.0090.00515.20
7.0.70.0050.00815.45
7.0.60.0110.02616.77
7.0.50.0040.02616.19
7.0.40.0020.03915.54
7.0.30.0150.02815.56
7.0.20.0110.02715.46
7.0.10.0100.03115.60
7.0.00.0050.03315.54
5.6.380.0090.00114.52
5.6.370.0070.00614.35
5.6.360.0020.01114.44
5.6.350.0030.00914.34
5.6.340.0070.00314.45
5.6.330.0000.01114.47
5.6.320.0060.00814.32
5.6.310.0070.00614.30
5.6.300.0050.00914.49
5.6.290.0080.00714.30
5.6.280.0070.02816.51
5.6.270.0100.00514.39
5.6.260.0050.00814.32
5.6.250.0020.00914.31
5.6.240.0080.00314.32
5.6.230.0090.00514.25
5.6.220.0070.00814.48
5.6.210.0050.01616.39
5.6.200.0040.02315.56
5.6.190.0060.02716.40
5.6.180.0050.03516.22
5.6.170.0100.01916.40
5.6.160.0040.02616.45
5.6.150.0080.03215.70
5.6.140.0050.03115.76
5.6.130.0050.01815.64
5.6.120.0110.02916.58
5.6.110.0130.02516.49
5.6.100.0090.02116.38
5.6.90.0120.03216.35
5.6.80.0110.03016.12
5.6.70.0090.00614.49
5.6.60.0120.00614.39
5.6.50.0130.00814.17
5.6.40.0120.00714.25
5.6.30.0100.01014.37
5.6.20.0170.00514.24
5.6.10.0120.00314.00
5.6.00.0160.00414.08
5.5.380.0020.01011.24
5.5.370.0010.00811.05
5.5.360.0050.00710.99
5.5.350.0060.01514.21
5.5.340.0040.02913.41
5.5.330.0060.01814.23
5.5.320.0130.02914.04
5.5.310.0120.02514.15
5.5.300.0050.01913.37
5.5.290.0030.03413.41
5.5.280.0100.01714.35
5.5.270.0110.03214.44
5.5.260.0200.02614.44
5.5.250.0130.02714.24
5.5.240.0090.03114.09
5.5.230.0130.00711.14
5.5.220.0140.00711.05
5.5.210.0170.00510.97
5.5.200.0140.00610.88
5.5.190.0100.00911.05
5.5.180.0120.00911.15
5.5.170.0140.00011.11
5.5.160.0170.00611.14
5.5.150.0080.00810.87
5.5.140.0050.00810.96
5.5.130.0100.00310.79
5.5.120.0050.00510.46
5.5.110.0060.00510.91
5.5.100.0070.00510.82
5.5.90.0070.00710.75
5.5.80.0030.00711.06
5.5.70.0140.00211.01
5.5.60.0080.00310.77
5.5.50.0080.00410.92
5.5.40.0060.00410.85
5.5.30.0130.00710.81
5.5.20.0200.00510.81
5.5.10.0120.01010.70
5.5.00.0070.00810.88
5.4.450.0150.03313.75
5.4.440.0230.01613.86
5.4.430.0250.01213.87
5.4.420.0190.02313.68
5.4.410.0220.01413.65
5.4.400.0230.02613.70
5.4.390.0160.01913.73
5.4.380.0200.02313.73
5.4.370.0150.01413.52
5.4.360.0250.02913.58
5.4.350.0220.01813.65
5.4.340.0220.01913.71
5.4.330.0130.00210.74
5.4.320.0230.01613.72
5.4.310.0220.01513.48
5.4.300.0240.02713.45
5.4.290.0150.02513.76
5.4.280.0110.02411.17
5.4.270.0060.02211.21
5.4.260.0040.02911.24
5.4.250.0080.02011.36
5.4.240.0130.02311.36
5.4.230.0080.02211.42
5.4.220.0120.02211.23
5.4.210.0090.03111.31
5.4.200.0060.02911.28
5.4.190.0110.02011.38
5.4.180.0120.02611.29
5.4.170.0040.02111.23
5.4.160.0030.02211.29
5.4.150.0080.02111.35
5.4.140.0070.02311.20
5.4.130.0040.02511.23
5.4.120.0080.02411.43
5.4.110.0070.01811.15
5.4.100.0060.01711.29
5.4.90.0090.01811.26
5.4.80.0060.02711.21
5.4.70.0060.02211.22
5.4.60.0060.02011.38
5.4.50.0080.02011.29
5.4.40.0050.02211.13
5.4.30.0100.02311.26
5.4.20.0100.02111.18
5.4.10.0100.02411.22
5.4.00.0070.01811.01
5.3.290.1640.01211.85
5.3.280.0140.01611.13
5.3.270.0080.01511.24
5.3.260.0030.02411.20
5.3.250.0060.02111.23
5.3.240.0070.02111.08
5.3.230.0090.01511.06
5.3.220.0060.01711.05
5.3.210.0060.01711.08
5.3.200.0060.01711.12
5.3.190.0070.01711.19
5.3.180.0070.01611.28
5.3.170.0090.02011.27
5.3.160.0080.02311.19
5.3.150.0100.02011.27
5.3.140.0080.02511.18
5.3.130.0100.01911.11
5.3.120.0110.02211.17
5.3.110.0100.02711.16
5.3.100.0090.02210.98
5.3.90.0100.02010.96
5.3.80.0140.02110.96
5.3.70.0160.02310.99
5.3.60.0130.02810.97
5.3.50.0200.02610.83
5.3.40.0200.03110.82
5.3.30.0130.02510.79
5.3.20.0140.02010.85
5.3.10.0060.01710.53
5.3.00.0070.01510.71
5.2.170.0140.0189.27
5.2.160.0060.0189.28
5.2.150.0150.0119.32
5.2.140.0050.0159.35
5.2.130.0070.0159.30
5.2.120.0130.0129.21
5.2.110.0100.0149.22
5.2.100.0060.0159.32
5.2.90.0090.0159.30
5.2.80.0040.0159.31
5.2.70.0110.0129.30
5.2.60.0070.0099.16
5.2.50.0060.0139.27
5.2.40.0080.0139.25
5.2.30.0090.0139.24
5.2.20.0130.0119.21
5.2.10.0060.0139.09
5.2.00.0040.0229.06
5.1.60.0070.0158.66
5.1.50.0100.0158.63
5.1.40.0070.0158.63
5.1.30.0090.0198.79
5.1.20.0060.0158.81
5.1.10.0060.0158.73
5.1.00.0080.0128.65
5.0.50.0070.0207.90
5.0.40.0060.0147.86
5.0.30.0050.0227.79
5.0.20.0090.0167.79
5.0.10.0050.0147.78
5.0.00.0050.0127.77
4.4.90.0070.0077.29
4.4.80.0060.0067.29
4.4.70.0040.0077.29
4.4.60.0070.0067.29
4.4.50.0040.0077.29
4.4.40.0050.0117.27
4.4.30.0040.0087.29
4.4.20.0030.0087.32
4.4.10.0040.0077.32
4.4.00.0040.0117.29
4.3.110.0030.0117.26
4.3.100.0040.0117.26
4.3.90.0080.0187.25
4.3.80.0050.0107.23
4.3.70.0040.0077.25
4.3.60.0060.0067.25
4.3.50.0060.0077.25
4.3.40.0040.0107.22
4.3.30.0010.0106.79
4.3.20.0040.0096.79
4.3.10.0040.0116.77
4.3.00.0030.01310.34

preferences:
50.81 ms | 401 KiB | 5 Q