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Top Forums Shell Programming and Scripting Checking if string contains integer Post 302088199 by haz on Sunday 10th of September 2006 06:36:15 AM
Old 09-10-2006
Checking if string contains integer

G'day guys, first post so be gentle.

I need help with some code to work out if a variable (string) contains any integers. The valid variable (string) must contain only letters.

Also need to be able to work out if a variable contains only integers.

Any help greatly appreciated.
 

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VFPRINTF(3)								 1							       VFPRINTF(3)

vfprintf - Write a formatted string to a stream

SYNOPSIS
int vfprintf (resource $handle, string $format, array $args) DESCRIPTION
Write a string produced according to $format to the stream resource specified by $handle. Operates as fprintf(3) but accepts an array of arguments, rather than a variable number of arguments. PARAMETERS
o $handle - o $format - See sprintf(3) for a description of $format. o $args - RETURN VALUES
Returns the length of the outputted string. EXAMPLES
Example #1 vfprintf(3): zero-padded integers <?php if (!($fp = fopen('date.txt', 'w'))) return; vfprintf($fp, "%04d-%02d-%02d", array($year, $month, $day)); // will write the formatted ISO date to date.txt ?> SEE ALSO
printf(3), sprintf(3), sscanf(3), fscanf(3), vsprintf(3), number_format(3). PHP Documentation Group VFPRINTF(3)
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