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Debug output of a variable
by: Rdiger Reinhardt
|
April 27, 2001
Version: 1.0
Type: Function
Category: Other
License: GNU General Public License
Description: These are two small functions which output variable type and content in a nice formatted way. Actually it uses var_dump(), but encloses the outtput in <hr>'s and uses a fixed-width font. Arrays are parsed recursively and every new instance is indented by a given number of 's. It only 'debugs' if a variable named $debug is set to 'true', so you can easily switch on or off the output globally.
//***********************************************************************************
// array_recurse & debug
// debug output a var
// by rdiger reinhardt - reinhardt@net-attach.de
//***********************************************************************************
function array_recurse($item, $spacer = " ")
{
// increase spacer
$var_sign = "<b><i><font color='#000080'>Array(" . sizeof($item) . ")</font></i></b>";
if (strlen($spacer) != 1)
{
$spacer .= str_repeat(" ", strlen(key($item)) + 12);
}
else
{
$spacer = str_repeat(" ", strlen(strip_tags($var_sign)));
}
echo $var_sign . "<br>\n";
// walk through the array...
foreach($item as $key => $value)
{
// ...and start another recursion, if the value is an array again...
if (is_array($value))
{
echo $spacer;
echo "[<font color='#CA0000'>$key</font>] => ";
array_recurse($value, $spacer);
}
// ...or simply output the var.
else
{
echo $spacer;
echo "[<font color='#CA0000'>$key</font>] => ";
// special handling for booleans...
if (gettype($value) == boolean)
{
$dsp_value = "false";
if ($value)
{
$dsp_value = "true";
}
echo "<font color='#408080'> bool(" . $dsp_value . ")</font>";
}
else
{
echo "<font color='#408080'>" . gettype($value) . " '" . $value . "'</font>";
}
echo "<br>\n";
}
}
echo "<br>\n";
}
function debug($var, $dsp_text = "[debug output]")
{
GLOBAL $debug;
// debug mode set?
if ($debug)
{
echo "<font face='courier new, courier' size='-1'>\n";
echo "<hr size='1' noshade><b>$dsp_text: </b><br>\n";
// if the var is an array, recurse...
if (is_array($var))
{
array_recurse($var);
}
// ...or else dump the var.
else
{
var_dump($var);
}
echo "<br><hr size='1' noshade>\n";
echo "</font>\n";
}
}
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