PHP SplObjectStorage contains() Function

0 0 1 minute read

The SplObjectStorage::contains() function is an inbuilt function in PHP which is used to check the storage object contains a specified object or not.

Syntax:

bool SplObjectStorage::contains( $value )

Parameters: This function accepts a single parameter $value which specifies the storage object which is going to check.

Return Value: This function returns true if storage object contains specified object otherwise return false.

Below programs illustrate the SplObjectStorage::contains() function in PHP:

Program 1:

<?php 
$gfg1 = new StdClass; 
$gfg2 = new StdClass; 
  
// Declare Empty SplObjectStorage 
$str = new SplObjectStorage(); 
  
$str[$gfg1] = "zambiatek"; 
  
// Print result 
var_dump($str->contains($gfg1)); 
var_dump($str->contains($gfg2)); 
  
?> 

Output:

bool(true)
bool(false)

Program 2:

<?php 
$gfg1 = new StdClass; 
$gfg2 = new StdClass; 
  
// Declare Empty SplObjectStorage 
$str = new SplObjectStorage(); 
  
$str[$gfg1] = "zambiatek"; 
  
// Print result 
var_dump($str->contains($gfg1)); 
var_dump($str->contains($gfg2)); 
  
// detach and print result 
$str->detach($gfg1); 
var_dump($str->contains($gfg1)); 
  
?> 