How to create Wordpress posts from external json file? - php

Question

Here is the code I am using. It creates duplicate post every time I refresh. Also, how can I add custom field to my post?
My array looks like this:
[{
"featured":"",
"exclusive":"",
"promo_id":"XXX",
"offer_id":"1",
"title" : "Super Cars"
}]
My php code:
<?php
$json = "url";
$response = file_get_contents($json);
$mydecode = json_decode($response);
for ($i = 10; $i < 15; $i++) {
$title = str_replace("&", "&", $mydecode[$i]->title);
$id = $mydecode[$i]->offer_id;
$link = $mydecode[$i]->link;
if( $id === "x" ) {
$new_post = array(
'post_title' => $title,
'post_content' => $description,
'post_status' => 'draft',
'post_author' => 1,
'post_type' => 'coupon'
);
$post_id = wp_insert_post($new_post);
}
}
?>
The code successfully inserts posts but duplicate every time I refresh.
If anyone can contribute a bit, it would be great!

Answer 1

Update your code to following,
<?php
$json = "http://tools.vcommission.com/api/coupons.php?apikey=xxxxxxxxxx";
$response = file_get_contents($json);
$mydecode = json_decode($response);
for ($i = 0; $i < 15; $i++) {
$title = str_replace("&", "&", $mydecode[$i]->coupon_title);
$description = str_replace("&", "&", $mydecode[$i]->coupon_description);
$store_name = $mydecode[$i]->offer_name;
$coupon_type = $mydecode[$i]->coupon_type;
$coupon_code = $mydecode[$i]->coupon_code;
$link = $mydecode[$i]->link;
$expiry_date = $mydecode[$i]->coupon_expiry;
if( $coupon_type === "Coupon" ) {
// Check if already exists
$get_page = get_page_by_title( $title );
if ($get_page == NULL){
// Insert post
$new_post = array(
'post_title' => $title,
'post_content' => $description,
'post_status' => 'draft',
'post_author' => 1,
'post_type' => 'coupon'
);
// Insert post
$post_id = wp_insert_post($new_post);
// Insert post meta if available
add_post_meta( $post_id, 'meta_key', 'meta_value' );
// Uncomment to check if meta key is added
// $get_meta_value = get_post_meta( $post_id, 'meta_key', true );
// echo "<pre>";
// print_r($get_meta_value);
}
}else{
// Update meta value
update_post_meta($get_page->ID, 'my_key', 'meta_value');
// Uncomment to check if meta key is added
// $get_meta_value = get_post_meta( $get_page->ID, 'meta_key', true );
// echo "<pre>";
// print_r($get_meta_value);
}
}
?>
I hope this helps.