3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = ['cat', 'dog', 'horse']; $a =& $array[2]; var_dump($array); $a = $array[0]; echo "$a\n"; $a = $array[1]; echo "$a\n"; echo $array[2]; $a = $array[2]; echo "$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)
8.3.60.0180.00718.18
8.3.50.0090.00918.17
8.3.40.0060.01518.84
8.3.30.0110.00318.50
8.3.20.0080.00020.07
8.3.10.0060.00321.04
8.3.00.0080.00020.94
8.2.180.0110.00716.50
8.2.170.0070.00722.96
8.2.160.0000.01419.46
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0040.00419.82
8.2.120.0050.00326.35
8.2.110.0060.00322.30
8.2.100.0110.00017.84
8.2.90.0000.00819.21
8.2.80.0040.00418.16
8.2.70.0040.00417.75
8.2.60.0040.00417.92
8.2.50.0000.00918.10
8.2.40.0040.00422.32
8.2.30.0000.00719.41
8.2.20.0050.00318.02
8.2.10.0000.00718.05
8.2.00.0040.00417.98
8.1.280.0160.00625.92
8.1.270.0040.00422.02
8.1.260.0030.00526.35
8.1.250.0030.00628.09
8.1.240.0090.00021.02
8.1.230.0040.00719.16
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0030.00617.35
8.1.190.0030.00517.22
8.1.180.0050.00318.10
8.1.170.0000.00820.27
8.1.160.0000.00719.01
8.1.150.0080.00018.86
8.1.140.0000.00819.50
8.1.130.0030.00318.73
8.1.120.0000.00717.38
8.1.110.0080.00017.30
8.1.100.0070.00017.29
8.1.90.0040.00417.46
8.1.80.0080.00017.32
8.1.70.0000.00717.29
8.1.60.0040.00417.55
8.1.50.0120.00017.49
8.1.40.0030.00517.40
8.1.30.0030.00517.57
8.1.20.0050.00217.50
8.1.10.0030.00517.60
8.1.00.0090.00017.57
8.0.300.0020.00518.77
8.0.290.0070.00016.63
8.0.280.0030.00318.36
8.0.270.0000.00717.17
8.0.260.0030.00318.88
8.0.250.0000.00816.97
8.0.240.0040.00416.82
8.0.230.0090.00016.96
8.0.220.0000.00716.87
8.0.210.0030.00616.91
8.0.200.0030.00316.96
8.0.190.0000.00816.90
8.0.180.0060.00316.87
8.0.170.0050.00316.94
8.0.160.0040.00416.82
8.0.150.0070.00016.72
8.0.140.0030.00616.77
8.0.130.0030.00313.22
8.0.120.0040.00416.73
8.0.110.0040.00416.95
8.0.100.0000.00816.88
8.0.90.0030.00616.76
8.0.80.0100.00716.93
8.0.70.0040.00416.77
8.0.60.0040.00416.91
8.0.50.0070.00016.71
8.0.30.0090.00917.00
8.0.20.0130.00517.40
8.0.10.0040.00416.73
8.0.00.0060.01116.77
7.4.330.0030.00315.55
7.4.320.0030.00416.55
7.4.300.0030.00316.43
7.4.290.0000.00716.52
7.4.280.0000.00716.43
7.4.270.0030.00316.47
7.4.260.0070.00016.52
7.4.250.0030.00316.30
7.4.240.0000.00716.45
7.4.230.0030.00316.33
7.4.220.0160.01616.55
7.4.210.0000.01416.46
7.4.200.0070.00016.53
7.4.160.0080.00916.56
7.4.150.0110.00717.40
7.4.140.0070.01017.86
7.4.130.0080.01016.56
7.4.120.0100.00816.47
7.4.110.0090.00916.50
7.4.100.0090.00916.63
7.4.90.0100.01316.46
7.4.80.0090.00819.39
7.4.70.0060.01016.64
7.4.60.0080.00816.45
7.4.50.0040.01516.42
7.4.40.0070.01016.30
7.4.30.0080.01316.47
7.4.00.0040.00714.96
7.3.330.0050.00013.00
7.3.320.0060.00013.19
7.3.310.0030.00316.33
7.3.300.0000.00616.28
7.3.290.0090.00616.37
7.3.280.0080.01016.32
7.3.270.0120.00617.40
7.3.260.0090.00816.35
7.3.250.0060.01316.42
7.3.240.0100.00616.44
7.3.230.0090.00816.29
7.3.210.0100.00616.52
7.3.200.0140.00316.21
7.3.190.0060.01216.73
7.3.180.0060.00916.33
7.3.170.0030.01316.49
7.3.160.0130.00316.31
7.3.120.0110.00414.79
7.3.110.0040.01114.80
7.3.100.0070.00314.91
7.3.90.0140.00014.92
7.3.80.0100.00314.86
7.3.70.0060.00914.74
7.3.60.0100.00314.89
7.3.50.0040.01214.60
7.3.40.0040.00814.91
7.3.30.0060.00614.82
7.3.20.0140.00016.70
7.3.10.0060.00816.59
7.3.00.0030.01416.45
7.2.330.0120.00616.70
7.2.320.0120.01116.38
7.2.310.0060.01216.37
7.2.300.0120.00616.45
7.2.290.0080.00816.85
7.2.240.0070.00715.28
7.2.230.0110.00715.00
7.2.220.0100.00314.67
7.2.210.0100.00014.90
7.2.200.0100.00315.02
7.2.190.0030.00715.13
7.2.180.0060.00314.71
7.2.170.0100.00315.07
7.2.160.0030.01314.94
7.2.150.0030.00916.78
7.2.140.0000.00916.82
7.2.130.0000.01517.12
7.2.120.0100.00316.95
7.2.110.0030.01316.91
7.2.100.0000.01116.65
7.2.90.0040.01216.75
7.2.80.0030.01316.92
7.2.70.0030.00716.63
7.2.60.0050.01016.90
7.2.50.0000.01516.70
7.2.40.0040.00416.84
7.2.30.0030.01017.04
7.2.20.0070.01016.89
7.2.10.0130.00316.62
7.2.00.0060.00917.00
7.1.330.0070.01016.02
7.1.320.0070.00716.07
7.1.310.0070.00715.92
7.1.300.0100.00315.77
7.1.290.0040.01115.82
7.1.280.0070.00715.78
7.1.270.0030.00915.75
7.1.260.0100.00615.72
7.1.250.0030.00515.76
7.1.200.0090.00615.86
7.1.70.0120.00717.13
7.1.60.0300.01335.17
7.1.50.0220.01234.82
7.1.40.0310.01434.49
7.1.30.0340.01434.67
7.1.20.0300.00634.73
7.1.10.0030.01216.52
7.1.00.0110.01216.76
7.0.200.0090.01016.89
7.0.190.0060.01316.86
7.0.180.0120.01216.16
7.0.170.0140.01116.28
7.0.160.0120.00816.12
7.0.150.0170.00016.15
7.0.140.0080.01116.32
7.0.130.0110.00716.78
7.0.120.2400.01016.71
7.0.110.0100.00716.32
7.0.100.0060.01216.45
7.0.90.0060.01416.28
7.0.80.0030.01316.48
7.0.70.0000.01916.32
7.0.60.0120.01116.15
7.0.50.0050.01316.53
7.0.40.0070.01416.52
7.0.30.0080.01216.59
7.0.20.0150.01216.59
7.0.10.0070.01416.59
7.0.00.0060.00916.43

preferences:
53.5 ms | 400 KiB | 5 Q