大约有 40,000 项符合查询结果（耗时：0.0517秒） [XML]
assign multiple variables to the same value in Javascript
...as not a primitive value but instead an object, you better know about copy by value vs copy by reference. Whenever assigning objects, the reference to the object is copied instead of the actual object. All variables will still point to the same object so any change in one variable will be reflected ...
How do I copy a folder from remote to local using scp? [closed]
...
scp -r user@your.server.example.com:/path/to/foo /home/user/Desktop/
By not including the trailing '/' at the end of foo, you will move the directory itself (including contents), rather than only the contents of the directory.
From man scp (See online manual)
-r Recursively copy entire di...
Extract elements of list at odd positions
...o, to sum up, in this case [1::2] means:
take the second element (which, by the way, is an odd element, if you judge from the index),
skip one element (because we have step=2, so we are skipping one, as a contrary to step=1 which is default),
take the next element,
Repeat steps 2.-3. until the end...
Can HTML be embedded inside PHP “if” statement?
... will only display if $condition is true</a>
<?php endif; ?>
By request, here's elseif and else (which you can also find in the docs)
<?php if($condition) : ?>
<a href="http://yahoo.com">This will only display if $condition is true</a>
<?php elseif($anotherCon...
Are different ports on the same server considered cross-domain? (Ajax-wise)
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
What MySQL data type should be used for Latitude/Longitude with 8 decimal places?
...arithmetic. Unlike FLOAT its precision is fixed for any size of number, so by using it instead of FLOAT you might avoid precision errors when doing some calculations. If you were just storing and retrieving the numbers without calculation then in practice FLOAT would be safe, although there's no har...
counting number of directories in a specific directory
... $dirCount = shell_exec('ls -l | grep -c ^d');
– gigabyte
Apr 13 '19 at 20:44
add a comment
...
Laravel blank white screen
...e application could not write to the log location. I've always solved this by making the app/storage directory writable by Apache (either group writable to "www-data", "apache" or world-writable - that depends on your server setup.
Web Server User
On Ubuntu/Debian servers, your PHP may be running ...
Django: reverse accessors for foreign keys clashing
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Checking if array is multidimensional or not?
...
In function is_multi() optimize the code by doing return count($rv)>0
– Xorifelse
Sep 2 '16 at 16:50
...