02-24-2009
Quote:
Originally Posted by
vgersh99
what's an "if loop"?
Hi, thanks for your response, that's really helpful. This is the 'UNIX for Dummies' forum - "All UNIX and Linux newbies welcome" - hence there perhaps be a slight lack of understanding of everything unix related, and perhaps even sometimes, the occasional gramatical mistake or ommition when posting a thread requesting help. I would assume this is to be expected, and really clever, cool people like you would overlook such minor oversights and simply offer the help and assistance us newbies are requesting with your vastly superior knowledge that inevitably makes you such a big hit with the ladies.
I wish I was like you.
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LEARN ABOUT PHP
is_string
IS_STRING(3) 1 IS_STRING(3)
is_string - Find whether the type of a variable is string
SYNOPSIS
bool is_string (mixed $var)
DESCRIPTION
Finds whether the type given variable is string.
PARAMETERS
o $var
- The variable being evaluated.
RETURN VALUES
Returns TRUE if $var is of type string, FALSE otherwise.
EXAMPLES
Example #1
is_string(3) example
<?php
$values = array(false, true, null, 'abc', '23', 23, '23.5', 23.5, '', ' ', '0', 0);
foreach ($values as $value) {
echo "is_string(";
var_export($value);
echo ") = ";
echo var_dump(is_string($value));
}
?>
The above example will output:
is_string(false) = bool(false)
is_string(true) = bool(false)
is_string(NULL) = bool(false)
is_string('abc') = bool(true)
is_string('23') = bool(true)
is_string(23) = bool(false)
is_string('23.5') = bool(true)
is_string(23.5) = bool(false)
is_string('') = bool(true)
is_string(' ') = bool(true)
is_string('0') = bool(true)
is_string(0) = bool(false)
SEE ALSO
is_float(3), is_int(3), is_bool(3), is_object(3), is_array(3).
PHP Documentation Group IS_STRING(3)