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Enhance stack_trace() method.
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805cf5df53
commit
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1 changed files with 42 additions and 6 deletions
48
core.php
48
core.php
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@ -457,22 +457,58 @@ function system_extension_mime_type($ext) {
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/**
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* Generates a stack trace.
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* @param bool $log_trace Whether to send the stack trace to the error log in addition to returning it.
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* @return string A string prepresentation of a stack trace.
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* @param bool $log_trace Whether to send the stack trace to the error log.
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* @param bool $full Whether to output a full description of all the variables involved.
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* @return string A string prepresentation of a stack trace.
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*/
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function stack_trace($log_trace = true)
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function stack_trace($log_trace = true, $full = false)
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{
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$result = "";
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$stackTrace = debug_backtrace();
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$stackHeight = count($stackTrace);
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foreach ($stackTrace as $i => $stackEntry)
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{
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$result .= "#" . ($stackHeight - $i) . " - " . $stackEntry["file"] . ":" . $stackEntry["line"] . " (" . $stackEntry["function"] . ":" . count($stackEntry["args"]) . ")\n";
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$result .= "#" . ($stackHeight - $i) . ": ";
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$result .= (isset($stackEntry["file"]) ? $stackEntry["file"] : "") . ":" . (isset($stackEntry["line"]) ? $stackEntry["line"] : "") . " - ";
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if(isset($stackEntry["function"]))
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{
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$result .= "(in " . $stackEntry["function"];
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if(isset($stackEntry["args"]) && count($stackEntry["args"]))
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{
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$result .= ": ";
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$result .= implode(", ", array_map($full ? "var_dump_ret" : "var_dump_short", $stackEntry["args"]));
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}
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}
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$result .= ")\n";
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}
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if($log_trace)
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error_log($result);
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return $result;
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}
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/**
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* Calls var_dump() and returns the output.
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* @param mixed $var The thing to pass to var_dump().
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* @return string The output captured from var_dump().
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*/
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function var_dump_ret($var)
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{
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ob_start();
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var_dump($var);
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return ob_get_clean();
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}
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/**
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* Calls var_dump(), shortening the output for various types.
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* @param mixed $var The thing to pass to var_dump().
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* @return string A shortened version of the var_dump() output.
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*/
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function var_dump_short($var)
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{
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$result = trim(var_dump_ret($var));
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if(substr($result, 0, 6) === "object" || substr($result, 0, 5) === "array")
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{
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$result = substr($result, 0, strpos($result, " ")) . " { ... }";
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}
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return $result;
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}
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