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What is the difference between is_a and instanceof?
...object
$x1 instanceof $x2 // returns false even if $x2 is int, undefined, etc.
So, is_a() highlights possible bugs while instanceof suppresses them.
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How do I pass variables and data from PHP to JavaScript?
...equests are carried over network and have network latencies.
State - Data fetched via a separate HTTP request won't include any information from the HTTP request that fetched the HTML document. You may need this information (e.g., if the HTML document is generated in response to a form submission) a...
WordPress is giving me 404 page not found for all pages except the homepage
...sts and the httpd.conf should be correct.
In my case, I changed the file /etc/apache2/apache2.conf in section:
<Directory "/var/www/html">
Line changed is:
AllowOverride None
to
AllowOverride All
And restart the web server with
systemctl restart apache2
...
How can I get the current page name in WordPress?
...fore the loop, before $post is populated, before $wp_query is initialized, etc...) you really have no choice but to access the server variables themselves and extract the requested page from the query string.
$page_slug = trim( $_SERVER["REQUEST_URI"] , '/' )
Note that this is a "dumb" solution. ...
I have 2 dates in PHP, how can I run a foreach loop to go through all of those days?
... + 86400 ) {
$thisDate = date( 'Y-m-d', $i ); // 2010-05-01, 2010-05-02, etc
}
When using PHP with a timezone having DST, make sure to add a time that is not 23:00, 00:00 or 1:00 to protect against days skipping or repeating.
...
How to use a switch case 'or' in PHP
...statements, eg: to test if a value is "greater than 3", "between 4 and 6", etc. If you need to do something like that, stick to using if statements, or if there's a particularly strong need for switch then it's possible to use it back to front:
switch (true) {
case ($value > 3) :
// ...
how to detect search engine bots with php?
...n set the user-agent to what they want, looking for 'Googlebot', 'bingbot' etc is only half the job.
The 2nd part is verifying the client's IP. In the old days this required maintaining IP lists. All the lists you find online are outdated. The top search engines officially support verification thro...
MySQL Server has gone away when importing large sql file
...qld’s my.cnf configuration file is large enough. On Debian: sudo nano
/etc/mysql/my.cnf, set wait_timeout = 600 seconds (you can
tweak/decrease this value when error 2006 is gone), then sudo
/etc/init.d/mysql restart. I didn't check, but the default value for
wait_timeout might be around 2...
How do I close a single buffer (out of many) in Vim?
...point.. copy and paste a few lines of text to use as a template of sorts.. etc. I would type the following:
:bd txt <Tab>
Note that the matching string does not have to be at the start of the file name.
The above displays the list of file names that match 'txt' at the bottom of the screen...
How can I check if a URL exists via PHP?
...returned by get_headers() are well formed.
Use curl (if you can).
Prevent fetching the entire body/content, but only request the headers.
Consider redirecting urls:
Do you want the first code returned?
Or follow all redirects and return the last code?
You might end up with a 200, but it could redire...