Core Function isDigit
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(Created page with "<pre> isDigit( <expression> ) </pre> === Description === Checks if string only contains numbers. === Parameters === ==== expression ==== The string to use. === Return Value...")
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(Created page with "<pre> isDigit( <expression> ) </pre> === Description === Checks if string only contains numbers. === Parameters === ==== expression ==== The string to use. === Return Value...")
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Revision as of 20:01, 25 April 2012
isDigit( <expression> )
Contents |
Description
Checks if string only contains numbers.
Parameters
expression
The string to use.
Return Value
Success: Returns 1.
Failure: Returns 0.
Remarks
Remember this function will NOT return true if the string is a valid float with decimal point if you wish to also allow floats check out isNumeric().
Example
$str = "The quick brown fox"; MsgBox( isDigit($str) );
