<?
/**
This function takes a left and right parameter, then returns the path
that is the combination of these two parameters.
@param $left Left side of path to build
@param $right Right side of path to build
@return The path that is the result of combining the <code>$left</code>
and <code>$right</code> parameters
@access private
*/
function BuildPath($left, $right) {
$tmpLeft = trim($left);
$tmpRight = trim($right);
if (strrpos($tmpLeft, "/") == strlen($tmpLeft) - 1) {
if (strpos2($tmpRight, "/") == 0) {
$tmpResult = $tmpLeft . substr($tmpRight, 1);
} else {
$tmpResult = $tmpLeft . "/" . $tmpRight;
}
} else {
if (strpos2($tmpRight, "/") == 0) {
$tmpResult = $tmpLeft . $tmpRight;
} else {
$tmpResult = $tmpLeft . "/" . $tmpRight;
}
}
return $tmpResult;
}
/**
This function is a replacement for the strpos built-in function. If the
string <code>$ident</code> is not found in <code>$str</code>, <code>-1</code>
is returned, otherwise, the position that <code>$ident</code> is found
in <code>$str</code> is returned
@param $str The string in which to search for <code>$ident</code>
@param $ident The substring that we are looking for in <code>$str</code>
@return integer The position in <code>$str</code> that <code>$ident</code> is
found. If <code>$ident</code> is not found, <code>-1</code> is returned.
*/
function strpos2($str, $ident) {
$pos = strpos($str, $ident);
if (is_string($pos) && !$pos) {
return -1;
} else {
return $pos;
}
}
/**
This function deletes a file from the server
@param $file Full path to the file to delete
@return boolean True if the delete was successful, false otherwise
@access private
*/
function deleteFile($file) {
clearstatcache();
if (file_exists($file)) {
unlink($file);
return true;
}
return false;
}
?>
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