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phpsyntaxsigils

double $ statement in php

What does the double $ statement stands for in PHP?

Solution

  • It means a variable variable:

    $a = 'b';
$b = 'test';
print $$a; // test

    For the most part (although there are exceptions if you know what you're doing) they are bad practice and whenever you see someone using them arrays are probably the better idea.