Valid and invalid variable names : Variables « Language Basics « PHP

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PHP » Language Basics » Variables

Valid and invalid variable names

 

$myvar            Correct

 

$Name             Correct

 

$_Age             Correct

 

$___AGE___        Correct

 

$9                Incorrect ; starts with a number

 

$1Name            Incorrect ; starts with a number

 

$Name1            Correct; numbers are fine at the end and after the first character

 

$_Name1           Correct

 

$Name's           Incorrect; no symbols other than "_" are allowed

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