Checking for an error from fopen(), fgets(), or fclose() : fgets « File Directory « PHP

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PHP » File Directory » fgets 
Checking for an error from fopen(), fgets(), or fclose()
 
<?
$fh = fopen('data.txt','rb');
if (! $fh) {
    print "Error opening people.txt: $php_errormsg";
else {
    for ($line = fgets($fh); ! feof($fh); $line = fgets($fh)) {
        if ($line === false) {
            print "Error reading line: $php_errormsg";
        else {
            $line = trim($line);
            $info = explode('|', $line);
            print '<li><a href="mailto:' . $info[0] . '">' . $info[1."</li>\n";
        }
    }
    if (! fclose($fh)) {
        print "Error closing people.txt: $php_errormsg";
    }
}
?>
//data.txt

a@example.com|Alice
b@example.org|Bill
c@example.com|Charlie
d@example.com|Lewis
  
  
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