Problems with namespaces and Call to undefined function in php

Question

Hi I am having a problem with my index.php whenever I go to http://localhost/blog/admin/index.php I get an error: Fatal error: Call to undefined function Blog\DB\connect() in C:\xampp\htdocs\blog\blog.php on line 6. In admin folder I am requiring my blog.php.

index.php

<?php  
 require '../blog.php';
?>

Now in blog.php

<?php

     require 'functions.php';
     require 'db.php';

     $conn = Blog\DB\connect($config);
     if( !$conn )
     {
       die('couldnt connect to the database');
     }

Now In db.php

<?php namespace Blog\DB;

   require 'config.php';

   function connect($config)
   {    
     try{
          $conn = new \PDO('mysql:host=localhost;dbname=blogs', 
          $config['DB_USERNAME'], 
          $config['DB_PASSWRORD']);
          $conn->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
          return $conn;
         }
     catch(PDOException $e)
     {
         return false;
     }
   }

blog.php is the index.php , sorry I am using stack over flow for the first time. — Aditya Banerjee
– Aditya Banerjee, Commented Oct 30, 2015 at 13:10
If I remember correctly, you need to name blog.php as index.php for there to be an index to go to? — General Charismo
– General Charismo, Commented Oct 30, 2015 at 13:12
Yes I edited it but I really do not understand why does it say Call to undefined function connect() only in that admin directory. — Aditya Banerjee
– Aditya Banerjee, Commented Oct 30, 2015 at 13:18
You're calling the function wrong, get rid of the whole Blog\DB\ before connect($config) and include db.php. — General Charismo
– General Charismo, Commented Oct 30, 2015 at 13:20

Jan · Accepted Answer · 2015-10-30 13:08:22Z

1

Eventually, you need to have the global namespace like so

$conn = \Blog\DB\connect($config); // mind the \ before Blog

Or the function is simply not defined (connect() that is).

answered Oct 30, 2015 at 13:08

Jan

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1 Comment

Aditya Banerjee Over a year ago

No I tried that I didnt work and sorry blog.php is the index.php.

General Charismo · Accepted Answer · 2015-10-30 13:22:28Z

0

When you're calling the function you're calling a function from your blog.php not db.php indicated by the error. In order to solve this problem you have to include db.php (Which might already be included by the require) and then call the function normally e.g.

include db.php
$conn = connect($config)

answered Oct 30, 2015 at 13:22

General Charismo

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2 Comments

Aditya Banerjee Over a year ago

I did the same thing but it doesnt work dont know why ?

Aditya Banerjee Over a year ago

No nothing @General Charismo

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