trim

cgarlick

What I am tring to do is at the bottom, I am getting white spaces then my explode does a \n. I have tried everything I can to strip it out but can get trim to work. Here is an example of how I was tring. I made a string with a white space and trim.. No luck.. I am a real newbe so if you say add whatever() better let me know where and what format to put it in.

This was the test:
<?php
$stri = "claude ";
trim($stri);
echo "'$stri'";
?>

This is what I am tring to do.
<?php

$filename = "users.dat";
$fp = fopen($filename, "r");
$file_contents = fread($fp, filesize($filename));
fclose($fp);

// Place each line in user info file into an array
$line = explode ("\n",$file_contents);

// For as long as $i is <= the size of the $line array, 
// explode each array element into a username and password pair

	$i = 0;


	while($i <= sizeof($line)) {			
		$data_pair = explode(":", $line[$i]);


           if (($username == "") || ($password == "")) {

                echo "you must enter a valid username and password to enter";
                exit;

}else if (($username == $data_pair[0]) && ($password == $data_pair[1])) {
echo "<html><head>\n";
echo "<meta http-equiv=\"refresh\" content=\"0; URL=index.php\">\n";
echo "</head>\n";
echo "</html>\n";

	        $i++;

	}else{
            echo "Sorry, could not find your password!";
             $i++;

}
}
?>

mrmufin

Originally posted by cgarlick

This was the test:
<?php
$stri = "claude ";
trim($stri);
echo "'$stri'";
?>

Test your usage of the trim() function again, using something like this instead. trim() returns a string, and your test was not using the returned value from trim():

// a string with leading and trailing spaces
$str = ' claude ';
// now make $str the return value of trim():
$str = trim($str);

// display $str twice (to prove it worked):
echo $str . $str;

What's printed is:
cluadeclaude

Leading and trailing spaces have been stripped...

cgarlick

BLESS YOU! mrmufin you just finished 3 months of work!! Thanks aheap!!!

Claude

Originally posted by mrmufin

Test your usage of the trim() function again, using something like this instead. trim() returns a string, and your test was not using the returned value from trim():
// a string with leading and trailing spaces
$str = ' claude ';
// now make $str the return value of trim():
$str = trim($str);

// display $str twice (to prove it worked):
echo $str . $str;
What's printed is:
cluadeclaude

Leading and trailing spaces have been stripped... [/B]

psy

2 other functions u can use are ltrim, and chop- basically the same thing as trim, only ltrim($var) will trim all spaces to the left, and chop($var) will trim all to the right