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Enhance stack_trace() method.

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Starbeamrainbowlabs 2016-10-25 14:47:53 +01:00 committed by GitHub
parent 805cf5df53
commit b97dfe7d4f
1 changed files with 42 additions and 6 deletions
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44
core.php
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@ -457,22 +457,58 @@ function system_extension_mime_type($ext) {
/**
* Generates a stack trace.
* @param bool $log_trace Whether to send the stack trace to the error log in addition to returning it.
* @param bool $log_trace Whether to send the stack trace to the error log.
* @param bool $full Whether to output a full description of all the variables involved.
* @return string A string prepresentation of a stack trace.
*/
function stack_trace($log_trace = true)
function stack_trace($log_trace = true, $full = false)
{
$result = "";
$stackTrace = debug_backtrace();
$stackHeight = count($stackTrace);
foreach ($stackTrace as $i => $stackEntry)
{
$result .= "#" . ($stackHeight - $i) . " - " . $stackEntry["file"] . ":" . $stackEntry["line"] . " (" . $stackEntry["function"] . ":" . count($stackEntry["args"]) . ")\n";
$result .= "#" . ($stackHeight - $i) . ": ";
$result .= (isset($stackEntry["file"]) ? $stackEntry["file"] : "") . ":" . (isset($stackEntry["line"]) ? $stackEntry["line"] : "") . " - ";
if(isset($stackEntry["function"]))
{
$result .= "(in " . $stackEntry["function"];
if(isset($stackEntry["args"]) && count($stackEntry["args"]))
{
$result .= ": ";
$result .= implode(", ", array_map($full ? "var_dump_ret" : "var_dump_short", $stackEntry["args"]));
}
}
$result .= ")\n";
}
if($log_trace)
error_log($result);
return $result;
}
/**
* Calls var_dump() and returns the output.
* @param mixed $var The thing to pass to var_dump().
* @return string The output captured from var_dump().
*/
function var_dump_ret($var)
{
ob_start();
var_dump($var);
return ob_get_clean();
}
/**
* Calls var_dump(), shortening the output for various types.
* @param mixed $var The thing to pass to var_dump().
* @return string A shortened version of the var_dump() output.
*/
function var_dump_short($var)
{
$result = trim(var_dump_ret($var));
if(substr($result, 0, 6) === "object" || substr($result, 0, 5) === "array")
{
$result = substr($result, 0, strpos($result, " ")) . " { ... }";
}
return $result;
}