Check exists post title - php

Question

I created plugin for get post title via API on submit. I used simple api request for getting data after via wp_insert_post() function add to DB. But i want check every time on submit to exists title. If there is a new post title then add to the database if not then it will report that 'There are no new posts'
plugin.php
if(isset($_POST['enable'])) {
$url='api/url';
$result = file_get_contents($url);
$resultData = json_decode($result);
foreach ($resultData as $job) {
$post_exists = get_page_by_title( $job->JobTitle, OBJECT, 'post');
if ( post_exists) {
$data = array (
'post_type' => 'post',
'post_title' => $job->JobTitle,
'post_status' => 'publish',
'post_author' => $user_ID
);
$post_id = wp_insert_post( $data );
}
}
echo "Done!";
}

Answer 1

Try this code.
if( isset( $_POST['enable'] ) ) {
$url = 'api/url';
$result = file_get_contents( $url );
$resultData = json_decode( $result );
foreach ($resultData as $job) {
$post_title = sanitize_title( $job->JobTitle );
$post_id = post_exists( $post_title );
if( !$post_id ){
$data = array(
'post_type' => 'post',
'post_title' => $post_title,
'post_status' => 'publish',
'post_author' => $user_ID,
);
$post_id = wp_insert_post( $data );
}else{
//post title exist
}
}
}

Answer 2

You should try this,
This code will return an array of all posts that match the title.
global $wpdb;
$query = $wpdb->prepare('SELECT ID FROM ' . $wpdb->posts . ' WHERE post_title = "'.$post_title.'" AND post_status="publish"');
$post_exists = $wpdb->get_results( $query );