10-27-2010
I think that the original code is faulty, therefore I deduced the probable function from the output messages.
We could do with some input from the O/P .
Interesting point in the Open Group posting about "test" with an "and" clause when the first parameter is "!" and the second parameter is blank. Not come across the problem myself but the point is valid.
My point about [[ was badly worded. It was about removing the distinction between [[ and [ with view to removing [[ completely. Similarly "test" as an external commmand was to be depreciated.
Interestingly the current proposal has backed down on this one.
See "rationale" in this link:
test
This wasn't the only place I have read about [[ by far. I take a mild interest because of historic trouble with [[ and ]] being external commands and some painful diagnostics of badly written Conditional Expressions.
If a unix comes out with a Shell which is too diverse I will just recommend that we do not purchase.
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LEARN ABOUT PHP
collator_compare
COLLATOR_COMPARE(3) 1 COLLATOR_COMPARE(3)
Collator::compare - Compare two Unicode strings
Object oriented style
SYNOPSIS
public int Collator::compare (string $str1, string $str2)
DESCRIPTION
Procedural style
int collator_compare (Collator $coll, string $str1, string $str2)
Compare two Unicode strings according to collation rules.
PARAMETERS
o $coll
-Collator object.
o $str1
- The first string to compare.
o $str2
- The second string to compare.
RETURN VALUES
Return comparison result:
o 1 if $str1 is
greater than $str2 ;
o 0 if $str1 is
equal to $str2;
o -1 if $str1 is
less than $str2 .
On error boolean FALSE is returned.
Warning
This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on
Booleans for more information. Use the === operator for testing the return value of this function.
EXAMPLES
Example #1
collator_compare(3)example
<?php
$s1 = 'Hello';
$s2 = 'hello';
$coll = collator_create( 'en_US' );
$res = collator_compare( $coll, $s1, $s2 );
if ($res === false) {
echo collator_get_error_message( $coll );
} else if( $res > 0 ) {
echo "s1 is greater than s2
";
} else if( $res < 0 ) {
echo "s1 is less than s2
";
} else {
echo "s1 is equal to s2
";
}
?>
The above example will output:
SEE ALSO
collator_sort(3).
PHP Documentation Group COLLATOR_COMPARE(3)