Removing row from array based on duplicate value of a key - php

Question

I have a array called $data['job_list'] which is as follows
Array
(
[0] => Array
(
[job_id] => 2
[job_title] => JQuery developer
[job_desc] => Developer
[job_slug] => 2-JQuery-developer
[job_type] => 191
[job_skill] => 2
[job_salary] => 2
[job_experience] => 1
[company_name] => IGUTS
[company_desc] => IGUTS is a fresh company
[company_industry] => 24
[company_address] => 35 Lawrence Street
[company_state] => 35
[company_city] => 650
[user_id] => 1
[concerned_fname] => Saswat
[concerned_lname] => Routroy
[contact] => 8961287928
[date_of_post] => 26-04-2014
[job_timestamp] => 1398517810
[industry_id] => 191
[industry_title] => Web Designer/Developer
[p_cid] => 24
[industry_slug] => 191-Web-Designer-Developer
[industry_desc] =>
[industry_image] =>
[industry_priority] => 0
[industry_timestamp] => 1396535046
)
[1] => Array
(
[job_id] => 1
[job_title] => PHP developer
[job_desc] => Developer
[job_slug] => 1-PHP-developer
[job_type] => 191
[job_skill] => 1,2
[job_salary] => 1
[job_experience] => 1
[company_name] => IGUTS
[company_desc] => IGUTS Company
[company_industry] => 24
[company_address] => 35 Lawrence Street
[company_state] => 35
[company_city] => 650
[user_id] => 1
[concerned_fname] => Saswat
[concerned_lname] => Routroy
[contact] => 8961287928
[date_of_post] => 18-04-2014
[job_timestamp] => 1397842605
[skill_id] => 2
[skill_title] => JQuery
[skill_slug] => 2-JQuery
[industry] => 24
[skill_timestamp] => 1397395987
)
[2] => Array
(
[job_id] => 2
[job_title] => JQuery developer
[job_desc] => Developer
[job_slug] => 2-JQuery-developer
[job_type] => 191
[job_skill] => 2
[job_salary] => 2
[job_experience] => 1
[company_name] => IGUTS
[company_desc] => IGUTS is a fresh company
[company_industry] => 24
[company_address] => 35 Lawrence Street
[company_state] => 35
[company_city] => 650
[user_id] => 1
[concerned_fname] => Saswat
[concerned_lname] => Routroy
[contact] => 8961287928
[date_of_post] => 26-04-2014
[job_timestamp] => 1398517810
[skill_id] => 2
[skill_title] => JQuery
[skill_slug] => 2-JQuery
[industry] => 24
[skill_timestamp] => 1397395987
)
)
[job_id] => 2 is present twice
What I want is that, the row with duplicate job_id => 2 should be removed
How can I achieve that??

Answer 1

$jobIds = array();
foreach ($jobs as $key => $job) {
if (in_array($jobIds, $job['job_id'])) {
unset($jobs[$key]);
continue;
}
$jobIds[] = $job['job_id'];
}
print_r($jobs);

Answer 2

I would cycle though each "job" and create an array of Job IDs. If I see the same ID twice then I would remove the duplicate and store it somewhere else if needed.

Answer 3

As Matei Mihai stated, i made some minor changes in his script and bingo it solved..
Matei Mihai made a mistake regarding the data-type of arguments of the in_array() function
I fixed that.
here's my code
$jobIds = array();
for($i = 0;$i < count($data['job_list']); $i++ )
{
if (in_array($data['job_list'][$i]['job_id'], $jobIds))
{
unset($data['job_list'][$i]);
continue;
}
$jobIds[] = $data['job_list'][$i]['job_id'];
}