How to get explode #img::value to lookup in my database - php

Question

I want to get value from my content such as #img::56:
#img::56 => value=56 to get record from datatabase mysql_query("select * from tblgallery where g_id=56");.
Tara Angkor Hotel is the first 4-Star Luxury Hotel built in the mystical land of Angkor. #img::56 Ideally and #youtube::https://www.youtube.com/watch?v=k4YRWT_Aldo conveniently located, Tara Angkor Hotel is situated only 6 km from the World Heritage site of Angkor Wat Temples, 15 min drive from the Siem Reap International Airport, a few minutes stroll to the Angkor National Museum and #img::41 a short ride to the city town center with an array of Cambodian souvenirs, shopping and culture.
I want to get result
Tara Angkor Hotel is the first 4-Star Luxury Hotel built in the mystical land of Angkor. mysql_query("select * from tblgallery where g_id=56") Ideally and <iframe width="560" height="315" src="//www.youtube.com/embed/k4YRWT_Aldo" frameborder="0" allowfullscreen></iframe> conveniently located, Tara Angkor Hotel is situated only 6 km from the World Heritage site of Angkor Wat Temples, 15 min drive from the Siem Reap International Airport, a few minutes stroll to the Angkor National Museum and mysql_query("select * from tblgallery where g_id=41") a short ride to the city town center with an array of Cambodian souvenirs, shopping and culture.

Answer 1

If I understand your question, you want to retrieve the 56 from the string #img::56?
If so it can be done as follows.
$string = '#img::56';
// Explode the string as the delimiter.
$components = explode('::', $string);
// Ensure the components array has two elements.
if(count($components) < 2) {
// Do something here to indicate an error has occurred.
//Throw an exception (preferred) or emit an error
}
$id = $components[1];
// You can use even more type checking here to ensure you have the right piece of data.
if(!ctype_digit($id)) {
//Throw an exception (preferred) or emit an error
}
// Accessing the database using a PDO object and prepared statements
$pdo = new \PDO('mysql:host=...', 'username', 'password')
$statement = $pdo->prepare('SELECT * FROM tblgallary WHERE g_id = :id');
$statement->bindParam(':id', $id, \PDO::PARAM_INT);
if(!$statement->execute()) {
//Throw an exception (preferred) or emit an error
}
$result = $statement->fetchAll(\PDO::FETCH_ASSOC);
// End the database connection
$pdo = null;
Now you have the id. If you need the $id to be an integer you can type cast it with (int) $components[1] instead.
Hope this helps.