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PHP Ds / Stack pop () function

Syntax:
mixed public DsStack::pop (void)
Parameters: this function takes no parameters.Return valuemixed mixed This function returns the item at the top of the stack and removes it from the stack.The programs below illustrate the Ds / Stack::pop()function in PHP:Program 1:  
// PHP illustration program
// pop() function 
// Create a stack instance $stack = new  DsStack();  
// Push items onto the stack $stack -> push ( "Welcome" ); $stack -> push ( "to" ); $stack -> push ( "GfG" );  
// Print initial stack print_r ( $stack );  
// Print the top element and remove it print_r ( $stack -> pop());  
// Print the stack again print_r ( $stack );  
?>
Output:
DsStack Object ([0] = > GfG [1] = > to [2] = > Welcome) GfG DsStack Object ([0] = > to [1] = > Welcome)
Program 2:  
// PHP illustration program
// pop ( ) 
// Create a stack instance $stack = new DsStack();  
// Put elements with mixed values ​​on the stack $stack -> push ( "Welcome" ); $stack -> push ( "to" ); $stack -> push ( "GfG" ); $stack -> push (10); $stack -> push (5.5);  
// Print the stack first print_r ( $stack );  
// Print the top element and remove it print_r ( $stack -> pop());  
// Print the stack again print_r ( $stack );  
?>
Output:
DsStack Object ([0] = > 5.5 [1] = > 10 [2] = > GfG [3] = > to [4] = > Welcome) 5.5 DsStack Object ([0] = > 10 [1] = > GfG [2] = > to [3] = > Welcome)
Link : http://php.net/manual/en/ds-stack.pop.php

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