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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...
PHP: Count a stdClass object
...od works, I would not use it for implementation because future versions of PHP could cause this code to break, I much prefer Alan Strom's answer.
– ars265
Jul 14 '13 at 12:32
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How to get the first item from an associative PHP array?
...
More information on the reset function: www.w3schools.com/php/func_array_reset.asp
– Paul Chris Jones
Dec 17 '19 at 12:38
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How to track down a “double free or corruption” error
...
If you're using glibc, you can set the MALLOC_CHECK_ environment variable to 2, this will cause glibc to use an error tolerant version of malloc, which will cause your program to abort at the point where the double free is done.
You can set this from gdb by using ...
Undefined reference to static class member
...me figuring out that if the class definition is in a header file, then the allocation of the static variable should be in the implementation file, not the header.
– shanet
Jul 14 '12 at 3:06
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When to use static vs instantiated classes
PHP is my first programming language. I can't quite wrap my head around when to use static classes vs instantiated objects.
...
What is Haskell used for in the real world? [closed]
...h
closures), strong typing (TypeInference), GarbageCollection, storage
allocation, whether to use boxed (pointer-to-value) or unboxed (value
directly) representation...
Safe multithreading! Immutable data structures are not subject to data race conditions, and consequently don't have to be p...
Good PHP ORM Library?
Is there a good object-relational-mapping library for PHP?
36 Answers
36
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Is there a function to make a copy of a PHP array to another?
Is there a function to make a copy of a PHP array to another?
19 Answers
19
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What is the function __construct used for?
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__construct was introduced in PHP5 and it is the right way to define your, well, constructors (in PHP4 you used the name of the class for a constructor).
You are not required to define a constructor in your class, but if you wish to pass any parameters on...