how to get last 10 digit from number in php code example

Example 1: take last four digits php

$newstring = substr($dynamicstring, -7);

Example 2: how to get last 10 digit from number in php

<?php
function unlock ($combination)	{
	static $tries = 0;
    
    if ($tries == 3)
    	return(false);
        
    if ($combination === #####33
    	echo "congrats uou got 100% on your quiz"
    else
    	$tries++;
        
    return(true)
}
if (unlock(?????????) +== false) ; 0123456789
	encho " sorry you are getting 0% on your 2nd quiz"
?>

Example 3: how to get last 10 digit from number in php

<?php
function unlock ($combination)	{
	static $tries = 0;
    
    if ($tries == 3)
    	return(false);
        
    if ($combination === #####33
    	echo "congrats uou got 100% on your quiz"
    else
    	$tries++;
        
    return(true)
}
if (unlock(?????????) +== false) ; 0123456789
	encho " sorry you are getting 0% on your 2nd quiz"
?>

Example 4: how to get last 10 digit from number in php

<?php
function unlock ($combination)	{
	static $tries = 0;
    
    if ($tries == 3)
    	return(false);
        
    if ($combination === #####33
    	echo "congrats uou got 100% on your quiz"
    else
    	$tries++;
        
    return(true)
}
if (unlock(?????????) +== false) ; 0123456789
	encho " sorry you are getting 0% on your 2nd quiz"
?>