3v4l.org

run code in 300+ PHP versions simultaneously
<?php $credentials = array(); var_dump( $credentials['user_login'] ); var_dump( array( &$credentials['user_login'] ) ); var_dump( $credentials['user_login'] );

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)
8.3.60.0140.00418.42
8.3.50.0070.00720.38
8.3.40.0070.00718.61
8.3.30.0060.01318.91
8.3.20.0070.00024.18
8.3.10.0000.00824.66
8.3.00.0080.00026.16
8.2.180.0060.00925.92
8.2.170.0110.00718.91
8.2.160.0120.00322.96
8.2.150.0050.00325.66
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0000.00720.93
8.2.110.0070.00322.23
8.2.100.0040.00817.87
8.2.90.0000.00819.22
8.2.80.0000.01018.70
8.2.70.0000.00817.38
8.2.60.0090.00017.93
8.2.50.0040.00418.07
8.2.40.0000.00818.34
8.2.30.0050.00317.98
8.2.20.0030.00520.40
8.2.10.0040.00418.03
8.2.00.0000.00719.16
8.1.280.0100.01025.92
8.1.270.0060.00323.99
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0040.00423.69
8.1.230.0040.00719.02
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0060.00317.35
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0040.00718.49
8.1.160.0050.00518.81
8.1.150.0040.00418.59
8.1.140.0000.00817.44
8.1.130.0000.00717.44
8.1.120.0030.00317.50
8.1.110.0040.00417.34
8.1.100.0070.00017.34
8.1.90.0070.00017.44
8.1.80.0050.00317.44
8.1.70.0140.00017.40
8.1.60.0170.00417.41
8.1.50.0150.00517.53
8.1.40.0130.00017.45
8.1.30.0140.00017.65
8.1.20.0110.00617.60
8.1.10.0170.00017.51
8.1.00.0130.00317.39
8.0.300.0070.00018.77
8.0.290.0040.00416.75
8.0.280.0000.00718.44
8.0.270.0040.00417.97
8.0.260.0000.00616.93
8.0.250.0030.00516.99
8.0.240.0030.00317.01
8.0.230.0000.00816.96
8.0.220.0000.00816.99
8.0.210.0000.00816.83
8.0.200.0060.00616.86
8.0.190.0090.00616.83
8.0.180.0090.00516.89
8.0.170.0110.00516.84
8.0.160.0110.00616.96
8.0.150.0120.00616.84
8.0.140.0120.00316.82
8.0.130.0110.00516.98
8.0.120.0080.00816.94
8.0.110.0090.00616.84
8.0.100.0120.00416.91
8.0.90.0090.00716.81
8.0.80.0130.00416.93
8.0.70.0110.00716.82
8.0.60.0080.00816.72
8.0.50.0080.00816.95
8.0.30.0120.00216.72
8.0.20.0130.00016.94
8.0.10.0100.00517.15
7.4.330.0020.00215.55
7.4.320.0030.00316.39
7.4.300.0090.00316.41
7.4.290.0090.00616.41
7.4.280.0100.00616.55
7.4.270.0120.00316.60
7.4.260.0160.00316.59
7.4.250.0140.00416.47
7.4.240.0180.00016.60
7.4.230.0090.00916.61
7.4.220.0090.00616.47
7.4.210.0100.00716.46
7.4.200.0150.00316.56
7.4.190.0160.00016.56
7.4.180.0090.00816.69
7.4.160.0120.00516.54
7.4.150.0080.00816.59
7.4.140.0040.01116.42
7.4.130.0080.00816.54
7.4.120.0120.00416.54
7.4.110.0100.00516.34
7.4.100.0070.00716.52
7.4.90.0090.00616.46
7.4.80.0060.00916.43
7.4.70.0110.00316.44
7.4.60.0050.00916.43
7.4.50.0080.00516.37
7.4.40.0040.00816.39
7.4.30.0150.00016.40
7.4.20.0070.00516.40
7.4.10.0060.00616.39
7.4.00.0100.00016.45

preferences:
51 ms | 400 KiB | 5 Q