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<?php
// $Id$
/**
* Displays variables as text and does diffs.
*/
class SimpleDumper {
/**
* Renders a variable in a shorter form than print_r().
*
* @param mixed $value Variable to render as a string.
*
* @return string Human readable string form.
* @access public
*/
function describeValue($value) {
$type = $this->getType($value);
switch ($type) {
case "Null":
return "NULL";
case "Bool":
return "Boolean: ". ($value ? "true" : "false");
case "Array":
return "Array: ". count($value) ." items";
case "Object":
return "Object: of ". get_class($value);
case "String":
return "String: ". $this->clipString($value, 200);
default:
return "$type: $value";
}
}
/**
* Gets the string representation of a type.
* @param mixed $value Variable to check against.
* @return string Type.
* @access public
*/
function getType($value) {
if (!isset($value)) {
return "Null";
}
$functions = array('bool', 'string', 'integer', 'float', 'array', 'resource', 'object');
foreach ($functions as $function) {
$function_name = 'is_' . $function;
if ($function_name($value)) {
return ucfirst($function);
}
}
return "Unknown";
}
/**
* Clips a string to a maximum length.
* @param string $value String to truncate.
* @param integer $size Minimum string size to show.
* @param integer $position Centre of string section.
* @return string Shortened version.
* @access public
*/
function clipString($value, $size, $position = 0) {
$length = strlen($value);
if ($length <= $size) {
return $value;
}
$position = min($position, $length);
$start = ($size / 2 > $position ? 0 : $position - $size / 2);
if ($start + $size > $length) {
$start = $length - $size;
}
$value = substr($value, $start, $size);
return ($start > 0 ? "..." : "") . $value . ($start + $size < $length ? "..." : "");
}
}
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