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Using a .php file to generate a MySQL dump
...c(), I would choose the second one, which doesn't return the output to the PHP script -- no need for the PHP script to get the whole SQL dump as a string : you only need it written to a file, and this can be done by the command itself.
That external command will :
be a call to mysqldump, with th...
How can I get the MAC and the IP address of a connected client in PHP?
...ow the MAC and the IP address of the connect clients, how can I do this in PHP?
16 Answers
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JavaScript URL Decode function
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Here is a complete function (taken from PHPJS):
function urldecode(str) {
return decodeURIComponent((str+'').replace(/\+/g, '%20'));
}
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How to determine the memory footprint (size) of a variable?
Is there a function in PHP (or a PHP extension) to find out how much memory a given variable uses? sizeof just tells me the number of elements/properties.
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PHP script to loop through all of the files in a directory?
I'm looking for a PHP script that loops through all of the files in a directory so I can do things with the filename, such as format, print or add it to a link. I'd like to be able to sort the files by name, type or by date created/added/modified. (Think fancy directory "index".) I'd also like to be...
instantiate a class from a variable in PHP?
...r as I can tell) must declare the full namespace path of a class.
MyClass.php
namespace com\company\lib;
class MyClass {
}
index.php
namespace com\company\lib;
//Works fine
$i = new MyClass();
$cname = 'MyClass';
//Errors
//$i = new $cname;
//Works fine
$cname = "com\\company\\lib\\".$cname...
Do AJAX requests retain PHP Session info?
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If PHP error reporting is turned on, you can get a session error returned with the AJAX response. I've been intermittently getting a Warning: session_write_close(): Failed to write session data (user) error lately in a project, ...
How to check if PHP array is associative or sequential?
PHP treats all arrays as associative, so there aren't any built in functions. Can anyone recommend a fairly efficient way to check if an array contains only numeric keys?
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Best way to test for a variable's existence in PHP; isset() is clearly broken
...f isset().
Since this is takes the array to check as a function argument, PHP will still raise "notices" if the array itself doesn't exist. In some cases, it can validly be argued that each dimension should have been initialised first, so the notice is doing its job. For other cases, a "recursive" ...
`static` keyword inside function?
... found some things I hadn't seen before. I did some initial looking in the php manual, but it didn't explain these examples.
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