Understanding variable scopes in php

Question

echo \"Point1, a=\".$a.\"\\n\";
echo \"Point1, b=\".$b.\"\\n\";
if(1<2)
    {
        $a = 6; 
        $b[\'link\'] = \"here\";
        echo \"Point2, a=\".$a.\"\         


        

Answer 1

In PHP only functions introduce a new scope, unlike Java and other languages :((( So If you need a new scope you need to create a new function and call it.

$a = 1;


 call_user_func(function(){
     //new local scope
     $a = 99999;
});


echo $a;   //will print 1