Generate URL slug in Codeigniter

November 16, 2018 By Samir Jana

Hi, friends. I am back with a new and interesting tutorial for you.This tutorial help you to generate SEO friendly URL slug. If you are working with PHP or Codeigniter then this tutorial will so much helpful for you.. I will tell you first that this tutorial for those people who develop their website using PHP.

What is URL slug:

For a blog site url slug is the most improtant to search a post. Because a url slug is detected the address of a particular post or a page on your website. A SEO friendly URL slug is the part of a URL that is collection from post title or page title. For example: “php-database-connection”.

Generate SEO friendly URL slug from POST title:

If you want to generate dynamically and SEO friendly URL slug then follow my steps, you can create a good SEO friendly URL slug from your post title.

Create MySQL table:

Follow the below instruction and create a table with these field.

CREATE TABLE `blog` (

`id` int(11) NOT NULL AUTO_INCREMENT,

`post_title` varchar(255) COLLATE utf8_unicode_ci NOT NULL,

`url_slug` varchar(255) COLLATE utf8_unicode_ci NOT NULL,

`post_category_id` int(11) COLLATE utf8_unicode_ci NOT NULL,

`post_image` varchar(255) COLLATE utf8_unicode_ci NOT NULL,

`post_description` text(1000) COLLATE utf8_unicode_ci NOT NULL,

`created_date` datetime NOT NULL,

`update_date` datetime NOT NULL,

PRIMARY KEY (`id`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

Insert POST (Controller)

<?php

public function insert_blog(){

$url_slug=$this->generate_url_slug($this->input->post('post_title'),'blog');

$config['upload_path'] = './assets/images/post_image';

$config['allowed_types'] = '*';

$this->load->library('upload', $config);

$this->upload->do_upload('post_image');

$up_file_name = $this->upload->data();

$post_image=$up_file_name['file_name'];

$created_date=date('Y-m-d h:i:s');

$update_date=date('Y-m-d h:i:s');

$data=array('post_title'=>$this->input->post('post_title'),'url_slug'=>$url_slug,'post_category'=>$this->input->post('post_category'),'post_image'=>$post_image,'post_description'=>$this->input->post('post_description'),'created_date'=>$created_date,'update_date'=>$update_date);

$this->PostModel->InsertBlog($data);

}

Generate URL slug (Controller)

<?php

function generate_url_slug($string,$table,$field='url_slug',$key=NULL,$value=NULL){

$t =& get_instance();

$slug = url_title($string);

$slug = strtolower($slug);

$i = 0;

$params = array ();

$params[$field] = $slug;

if($key)$params["$key !="] = $value;

while ($t->db->where($params)->get($table)->num_rows())

{

if (!preg_match ('/-{1}[0-9]+$/', $slug ))

$slug .= '-' . ++$i;

else

$slug = preg_replace ('/[0-9]+$/', ++$i, $slug );

$params [$field] = $slug;

}

return $slug;

}

Insert POST (Model)

<?php

function InsertBlog($data){

$ins_qry=$this->db->insert('blog',$data);

if($ins_qry){

$this->session->set_flashdata("success","Success! Blog create successful!");

return redirect('page url');

}else{

$this->session->set_flashdata("error","Error! Blog create faild!");

return redirect('page url');

}

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About the author

Samir Jana

I am working as a Web Developer for the last 4 years, and the projects I’ve been involved in have ranged from simple web applications used by thousands of users every day. Most of the applications that I’ve worked on are still in use today. Whenever I've worked on a team with other engineers and blogger that help people learn more.