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






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  2. Language Basics
  3. 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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