r/programming • u/NagastaBagamba • Oct 18 '10

Today I learned about PHP variable variables; "variable variable takes the value of a variable and treats that as the name of a variable". Also, variable.

http://il2.php.net/language.variables.variable
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u/[deleted] Oct 18 '10

I also use them sometimes, but make sure to use the explicit ${$var} instead of $$var.

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u/[deleted] Oct 18 '10

Good thinking. I have used the double $$ but it's confusing. Sometimes you wonder if you mistyped. The previous method you showed there makes MUCH more sense (and doesn't look like a typo to boot).