July 28, 2010
Is there a way to override/rename/remap function in php?
Question by erotsppa
I know it’s possible in other language like C++ or Obj-c even (at runtime AND compile time) but is there a way to override/rename/remap function in php? So what I mean is, let’s say we want to replace the implementation of mysql_query. Is that possible?
SOME_REMAP_FUNCTION(mysql_query, new_mysql_query);
//and then you define your new function
function new_mysql_query(blah...) {
//do something custom here
//then call the original mysql_query
mysql_query(blah...)
}
This way the rest of the code can transparently call the mysql_query function and not know that we inserted some custom code in the middle.
Answer by Cags
I believe if you make use of namespaces you can write a new function with the same name and ‘trick’ the system in that manner. Here’s a short blog I read about it on…
http://till.klampaeckel.de/blog/archives/105-Monkey-patching-in-PHP.html
Answer by Starx
If you have functions inside class. We can override it from other class inheriting it.
Example
class parent {
function show() {
echo "I am showing";
}
}
class mychild extends parent {
function show() {
echo "I am child";
}
}
$p = new parent;
$c = new mychild;
$p->show(); //call the show from parent
$c->show(); //call the show from mychild
