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$var = ‘foo’;
$$var = ‘bar’;
echo $foo;
What will be the output?
Its. Called single ($) doller and another called double ($$) doller in Php … The differenc is. In single doller ($) is a normal varible which stores any valuw like string,int,and float. In otherwords $$ (doube) dolller is unreference variable which store value of single $ inside it.