*URGENT* PHP Customization to existing code

I have been in this industry for 2 year and such jobs are my daily practice. This is my first time on this site and hence you can see that I do not have many ratings/testimonials to show you. I can assure you that if you work with me once, you will always work with me for these kind of projects.

hi, i'm expert web developer and can do your task in best way and in time. ypu will be satisfied with my work. i'll do your task right now and within two hours

We are expert team of freelancers specializing in PHP, CSS, HTML, SQL, Graphoc design. We can complete any task quickly and efficently. We are flexible with time and money. SO please dont hessitate to ask.

I can get started immediately and finish on time. Full stack developer with expertise in PHP. I will urge you to be online during the duration of the project. A few more details would help as well. I have worked with CSV exports that won't break on imports.

HELLO I CAN START RIGHT NOW - I AM EXPERT IN MySQL,PHP,undefined,undefined and I BET YOU CANNOT FIND BETTER FREELANCER THAN ME ... pLEASE MESSEGE ME AND LETS DISCUSS THE THINGS THANKS

I will do it in next 2 hours. I have PHP, MYSQL, AJAX, JS, JQUERY experience. I have to add 2 more filters , make them multiselect and csv export feature.