3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = ['x', 'y', 'z']; foreach($array as $element) { if ($element=='x') { $element = 'a'; } } var_dump($array);

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)
8.3.70.0070.00716.61
8.3.60.0070.00716.61
8.3.50.0110.00720.99
8.3.40.0040.01118.75
8.3.30.0080.00618.64
8.3.20.0070.00020.04
8.3.10.0040.00423.66
8.3.00.0040.00423.52
8.2.190.0090.00916.58
8.2.180.0080.01216.38
8.2.170.0120.00918.83
8.2.160.0070.00722.96
8.2.150.0090.00025.66
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0000.00719.82
8.2.110.0000.01021.12
8.2.100.0060.00617.91
8.2.90.0040.00417.91
8.2.80.0050.00317.97
8.2.70.0030.00517.63
8.2.60.0000.00817.90
8.2.50.0040.00418.07
8.2.40.0040.00422.38
8.2.30.0030.00519.52
8.2.20.0030.00617.59
8.2.10.0100.00217.75
8.2.00.0040.00717.83
8.1.280.0110.00725.92
8.1.270.0050.00323.88
8.1.260.0060.00326.35
8.1.250.0000.00728.09
8.1.240.0090.00022.19
8.1.230.0110.00022.75
8.1.220.0070.00017.74
8.1.210.0030.00519.76
8.1.200.0030.00617.35
8.1.190.0070.00017.23
8.1.180.0040.00418.10
8.1.170.0000.00818.56
8.1.160.0050.00320.75
8.1.150.0040.00819.01
8.1.140.0090.00318.46
8.1.130.0080.00317.53
8.1.120.0080.00317.49
8.1.110.0090.00517.34
8.1.100.0060.00417.44
8.1.90.0060.00517.43
8.1.80.0080.00217.44
8.1.70.0030.00517.37
8.1.60.0080.00417.54
8.1.50.0090.00717.46
8.1.40.0100.00417.52
8.1.30.0100.00517.57
8.1.20.0090.00617.57
8.1.10.0100.00517.32
8.1.00.0070.00717.33
8.0.300.0020.00520.03
8.0.290.0060.00316.63
8.0.280.0030.00318.39
8.0.270.0070.00416.95
8.0.260.0080.00017.03
8.0.250.0050.00616.87
8.0.240.0060.00516.86
8.0.230.0100.00316.89
8.0.220.0080.00516.81
8.0.210.0090.00516.79
8.0.200.0090.00316.82
8.0.190.0080.00416.82
8.0.180.0090.00416.85
8.0.170.0070.00616.84
8.0.160.0090.00516.86
8.0.150.0070.00616.79
8.0.140.0090.00616.72
8.0.130.0090.00516.25
8.0.120.0070.00616.82
8.0.110.0080.00516.79
8.0.100.0090.00416.77
8.0.90.0090.00316.80
8.0.80.0100.00416.81
8.0.70.0090.00316.74
8.0.60.0060.00716.80
8.0.50.0080.00416.76
8.0.30.0080.00716.86
8.0.20.0080.00717.01
8.0.10.0070.00516.91
8.0.00.0080.00516.90
7.4.330.0100.00016.60
7.4.320.0090.00216.46
7.4.300.0080.00616.48
7.4.290.0100.00316.45
7.4.280.0090.00416.52
7.4.270.0090.00516.49
7.4.260.0090.00516.47
7.4.250.0120.00216.48
7.4.240.0100.00416.47
7.4.230.0070.00616.46
7.4.220.0100.00516.49
7.4.210.0070.00716.51
7.4.200.0090.00316.46
7.4.190.0090.00416.51
7.4.180.0080.00516.56
7.4.160.0080.00616.50
7.4.150.0090.00416.57
7.4.140.0110.00416.71
7.4.130.0080.00716.33
7.4.120.0080.00716.37
7.4.110.0120.00616.36
7.4.100.0120.00516.45
7.4.90.0100.00616.42
7.4.80.0100.00616.60
7.4.70.0080.00716.32
7.4.60.0100.00616.39
7.4.50.0110.00816.37
7.4.40.0110.00516.39
7.4.30.0090.00616.40
7.4.20.0070.00916.39
7.4.10.0090.00816.38
7.4.00.0090.00716.28
7.3.330.0120.00315.69
7.3.320.0110.00315.78
7.3.310.0130.00316.29
7.3.300.0100.00416.14
7.3.290.0080.00616.23
7.3.280.0100.00716.24
7.3.270.0100.00616.36
7.3.260.0110.00416.24
7.3.250.0110.00716.28
7.3.240.0120.00416.30
7.3.230.0120.00416.27
7.3.220.0110.00516.22
7.3.210.0100.00716.26
7.3.200.0110.00616.21
7.3.190.0090.00716.24
7.3.180.0110.00616.27
7.3.170.0120.00516.26
7.3.160.0110.00616.25
7.3.150.0110.00616.28
7.3.140.0110.00616.26
7.3.130.0110.00716.27
7.3.120.0110.00716.21
7.3.110.0110.00616.15
7.3.100.0100.00716.14
7.3.90.0090.00816.14
7.3.80.0100.00716.00
7.3.70.0090.00715.88
7.3.60.0090.00715.75
7.3.50.0100.00715.77
7.3.40.0110.00715.80
7.3.30.0080.00815.71
7.3.20.0180.00716.07
7.3.10.0290.00715.73
7.3.00.0360.00715.53
7.2.340.0120.00516.39
7.2.330.0110.00616.40
7.2.320.0090.00716.35
7.2.310.0090.00816.40
7.2.300.0100.00716.41
7.2.290.0090.00816.43
7.2.280.0100.00716.36
7.2.270.0100.00716.42
7.2.260.0110.00616.44
7.2.250.0110.00616.48
7.2.240.0100.00716.34
7.2.230.0100.00816.33
7.2.220.0080.00916.21
7.2.210.0100.00816.18
7.2.200.0110.00716.10
7.2.190.0100.00715.96
7.2.180.0100.00715.96
7.2.170.0090.00815.97
7.2.160.0100.00715.89
7.2.150.0170.00816.29
7.2.140.0210.00816.37
7.2.130.0330.00715.81
7.2.120.0370.00715.72
7.2.110.0330.00815.63
7.2.100.0440.00815.61
7.2.90.0360.00815.58
7.2.80.0370.00715.59
7.2.70.0400.00815.61
7.2.60.0360.00715.65
7.2.50.0370.00715.63
7.2.40.0350.00815.63
7.2.30.0380.00715.65
7.2.20.0340.00815.64
7.2.10.0410.00815.60
7.2.00.0340.00715.67
7.1.330.0130.00715.69
7.1.320.0140.00715.64
7.1.310.0130.00815.48
7.1.300.0120.00715.31
7.1.290.0120.00715.37
7.1.280.0140.00715.36
7.1.270.0190.00715.23
7.1.260.0170.00715.19
7.1.250.0330.00714.67
7.1.240.0350.00614.58
7.1.230.0360.00714.51
7.1.220.0370.00714.49
7.1.210.0510.00814.49
7.1.200.0430.00814.48
7.1.190.0400.00714.47
7.1.180.0340.00714.45
7.1.170.0350.00714.51
7.1.160.0340.00714.45
7.1.150.0370.00814.50
7.1.140.0330.00614.46
7.1.130.0390.00614.45
7.1.120.0450.00814.46
7.1.110.0390.00714.53
7.1.100.0380.00714.52
7.1.90.0330.00714.48
7.1.80.0370.00714.48
7.1.70.0460.00714.46
7.1.60.0340.00816.87
7.1.50.0370.00816.85
7.1.40.0410.00716.83
7.1.30.0370.00916.81
7.1.20.0350.00816.83
7.1.10.0370.00814.49
7.1.00.0340.00714.48
7.0.330.0340.00614.31
7.0.320.0420.00814.28
7.0.310.0420.00714.13
7.0.300.0340.00714.17
7.0.290.0400.00614.17
7.0.280.0370.00614.20
7.0.270.0370.00714.18
7.0.260.0370.00614.19
7.0.250.0380.00714.22
7.0.240.0450.00614.23
7.0.230.0470.00714.25
7.0.220.0360.00714.20
7.0.210.0330.00714.18
7.0.200.0360.00714.17
7.0.190.0330.00714.21
7.0.180.0370.00714.22
7.0.170.0320.00714.25
7.0.160.0420.00914.21
7.0.150.0340.00814.19
7.0.140.0340.00714.22
7.0.130.0380.00814.22
7.0.120.0330.00814.22
7.0.110.0330.00814.26
7.0.100.0330.00714.24
7.0.90.0370.00714.25
7.0.80.0320.00614.24
7.0.70.0320.00714.21
7.0.60.0340.00714.26
7.0.50.0350.00714.25
7.0.40.0330.00714.26
7.0.30.0330.00614.24
7.0.20.0340.00714.20
7.0.10.0390.00614.27
7.0.00.0310.00714.21
5.6.400.0120.00915.26
5.6.390.0130.00815.27
5.6.380.0110.00814.73
5.6.370.0130.00814.77
5.6.360.0140.00814.72
5.6.350.0120.00914.77
5.6.340.0120.00914.68
5.6.330.0110.01014.75
5.6.320.0110.00914.75
5.6.310.0120.01014.75
5.6.300.0120.00914.73
5.6.290.0120.00914.71
5.6.280.0130.00814.72
5.6.270.0120.00814.73
5.6.260.0110.01014.71
5.6.250.0130.00814.73
5.6.240.0120.00914.72
5.6.230.0120.00914.73
5.6.220.0130.00814.73
5.6.210.0120.00914.71
5.6.200.0130.00814.72
5.6.190.0110.00814.72
5.6.180.0120.00814.73
5.6.170.0130.00714.72
5.6.160.0120.00814.70
5.6.150.0130.00714.72
5.6.140.0120.00914.72
5.6.130.0120.00914.75
5.6.120.0120.00814.73
5.6.110.0120.00814.69
5.6.100.0130.00714.73
5.6.90.0130.00814.69
5.6.80.0110.00914.68
5.6.70.0130.00914.69
5.6.60.0110.00914.64
5.6.50.0120.00814.64
5.6.40.0120.00814.64
5.6.30.0130.00814.66
5.6.20.0110.00814.63
5.6.10.0130.00714.65
5.6.00.0120.00814.60
5.5.380.0130.00613.14
5.5.370.0100.00813.13
5.5.360.0110.00713.11
5.5.350.0110.00713.11
5.5.340.0090.00813.08
5.5.330.0110.00713.08
5.5.320.0110.00713.09
5.5.310.0110.00713.14
5.5.300.0110.00713.12
5.5.290.0100.00713.12
5.5.280.0120.00713.10
5.5.270.0100.00713.10
5.5.260.0110.00713.09
5.5.250.0110.00713.05
5.5.240.0120.00713.08
5.5.230.0100.00813.08
5.5.220.0110.00713.03
5.5.210.0100.00713.08
5.5.200.0120.00713.03
5.5.190.0110.00712.98
5.5.180.0100.00713.05
5.5.170.0120.00713.72
5.5.160.0110.00713.04
5.5.150.0120.00613.04
5.5.140.0110.00713.04
5.5.130.0100.00813.01
5.5.120.0110.00713.00
5.5.110.0110.00713.01
5.5.100.0110.00613.12
5.5.90.0100.00813.07
5.5.80.0110.00813.02
5.5.70.0110.00712.98
5.5.60.0110.00813.02
5.5.50.0110.00713.00
5.5.40.0120.00513.01
5.5.30.0110.00713.04
5.5.20.0110.00713.02
5.5.10.0110.00813.05
5.5.00.0120.00612.98

preferences:
58.08 ms | 401 KiB | 5 Q