03-01-2011
Thanks for you response.
This hasn't done the trick for me though. The file that I'm working on is fixed length and contains both text and numerics throughout. The variables that I am matching on have 7 digits followed by 1/2 characters, if there is no second character this is a space.
Many thanks again in advance!
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LEARN ABOUT PHP
ctype_alnum
CTYPE_ALNUM(3) 1 CTYPE_ALNUM(3)
ctype_alnum - Check for alphanumeric character(s)
SYNOPSIS
bool ctype_alnum (string $text)
DESCRIPTION
Checks if all of the characters in the provided string, $text, are alphanumeric.
PARAMETERS
o $text
- The tested string.
RETURN VALUES
Returns TRUE if every character in $text is either a letter or a digit, FALSE otherwise.
EXAMPLES
Example #1
A ctype_alnum(3) example (using the default locale)
<?php
$strings = array('AbCd1zyZ9', 'foo!#$bar');
foreach ($strings as $testcase) {
if (ctype_alnum($testcase)) {
echo "The string $testcase consists of all letters or digits.
";
} else {
echo "The string $testcase does not consist of all letters or digits.
";
}
}
?>
The above example will output:
The string AbCd1zyZ9 consists of all letters or digits.
The string foo!#$bar does not consist of all letters or digits.
NOTES
Note
If an integer between -128 and 255 inclusive is provided, it is interpreted as the ASCII value of a single character (negative val-
ues have 256 added in order to allow characters in the Extended ASCII range). Any other integer is interpreted as a string contain-
ing the decimal digits of the integer.
SEE ALSO
ctype_alpha(3), ctype_digit(3), setlocale(3).
PHP Documentation Group CTYPE_ALNUM(3)