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<?php |
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namespace HexMakina\Debugger |
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{ |
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class Debugger |
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{ |
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private static array $skip_classes = [__CLASS__]; |
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public function addSkipClasses($skip_classes): void |
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{ |
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self::$skip_classes = array_merge(self::$skip_classes, $skip_classes); |
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self::$skip_classes = array_unique(self::$skip_classes); |
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} |
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// -- visual dump (display depends on env) |
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// return the var itself, for easy code debugging |
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public static function visualDump($var, $var_name = null, $full_backtrace = false) |
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{ |
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if ($var instanceof \Throwable) { |
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$traces = $var->getTrace(); |
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$dump = self::formatExceptionAsTrace($var); |
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} else { |
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$traces = debug_backtrace(); |
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ob_start(); |
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var_dump($var); |
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$dump = ob_get_clean(); |
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} |
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// purge traces from skipped classes |
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$traces = array_filter( |
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$traces, |
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static fn($trace): bool |
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=> empty($trace['class']) || !in_array($trace['class'], self::$skip_classes) |
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); |
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$message = self::toHTML($dump, $var_name, $traces, $full_backtrace); |
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self::displayErrors($message); |
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return $var; |
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} |
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private static function formatExceptionAsTrace($var): string |
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{ |
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return self::traceToString([ |
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'class' => get_class($var), |
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'line' => $var->getLine(), |
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'file' => $var->getFile(), |
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'function' => 'getCode', |
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'args' => [$var->getCode()] |
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]) . PHP_EOL . $var->getMessage(); |
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} |
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// should we display something ? |
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public static function displayErrors($error_message): void |
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{ |
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if (empty($error_message)) { |
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return; |
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} |
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if (ini_get('display_errors') != '1') { |
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return; |
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} |
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echo $error_message; |
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} |
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// -- formatting |
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public static function toText($var_dump, $var_name, $backtrace, $full_backtrace): string |
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{ |
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return PHP_EOL |
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. "******* " |
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. (empty($var_name) ? ($backtrace[1]['function'] ?? '?') . '()' : sprintf(' (%s) ', $var_name)) |
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. " *******" |
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. PHP_EOL |
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. self::tracesToString($backtrace, $full_backtrace) |
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. PHP_EOL |
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. $var_dump; |
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} |
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public static function toHTML($var_dump, $var_name, $backtrace, $full_backtrace): string |
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{ |
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$css = [ |
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'text-align:left', |
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'z-index:9999', |
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'background-color:#FFF', |
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'color:#000', |
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'padding:0.5em', |
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'font-size:0.7em', |
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'margin:0 0 1em 0', |
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'font-family:courier' |
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]; |
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return sprintf( |
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'<pre style="%s">%s</pre>', |
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implode(';', $css), |
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self::toText($var_dump, $var_name, $backtrace, $full_backtrace) |
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); |
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} |
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// reduce_file_depth_to allows for short filepath, cause it gets crazy sometimes |
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private static function formatFilename($file, $reduce_file_depth_to = 5): string |
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{ |
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return implode('/', array_slice(explode('/', $file), -$reduce_file_depth_to, $reduce_file_depth_to)); |
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} |
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// -- formatting : nice backtrace |
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private static function tracesToString($traces, $full_backtrace): string |
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{ |
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$formated_traces = []; |
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foreach ($traces as $trace) { |
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$formated_traces [] = self::traceToString($trace); |
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if ($full_backtrace === false) { |
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break; |
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} |
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} |
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return implode(PHP_EOL, array_reverse($formated_traces)); |
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} |
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private static function traceToString($trace): string |
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{ |
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$function_name = $trace['function'] ?? '?'; |
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$class_name = $trace['class'] ?? ''; |
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if (self::isShortcutCall($function_name)) { |
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$args = date_format(date_create(), 'ymd:his'); |
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} else { |
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$args = self::traceArgsToString($trace['args'] ?? []); |
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} |
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$call_file = isset($trace['file']) ? self::formatFilename($trace['file'], 2) : '?'; |
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$call_line = $trace['line'] ?? '?'; |
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return sprintf( |
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'[%-33.33s %3s] %s%s(%s)', |
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$call_file, |
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$call_line, |
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sprintf('%s::', $class_name), |
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$function_name, |
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$args |
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); |
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} |
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private static function traceArgsToString($trace_args): string |
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{ |
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$ret = []; |
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foreach ($trace_args as $trace_arg) { |
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$ret[] = self::traceArgToString($trace_arg); |
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} |
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return implode(', ', $ret); |
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} |
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private static function traceArgToString($arg) |
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{ |
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$ret = 'unknown type'; |
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if (is_null($arg)) { |
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$ret = 'NULL'; |
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} elseif (is_bool($arg)) { |
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$ret = 'bool:' . ((int)$arg); |
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} elseif (is_scalar($arg)) { |
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$ret = $arg; |
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} elseif (is_object($arg)) { |
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$ret = get_class($arg); |
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} elseif (is_array($arg)) { |
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$ret = 'Array #' . count($arg); |
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} |
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return $ret; |
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} |
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private static function isShortcutCall($function_name): bool |
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{ |
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return in_array($function_name, ['vd', 'dd','vdt', 'ddt']); |
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} |
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} |
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} |
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namespace |
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{ |
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use HexMakina\Debugger\Debugger; |
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if (!function_exists('vd')) { |
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function vd($var, $var_name = null): void |
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{ |
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Debugger::visualDump($var, $var_name, false); |
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} |
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} |
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if (!function_exists('dd')) { |
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function dd($var, $var_name = null): void |
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{ |
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Debugger::visualDump($var, $var_name, false); |
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die; |
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} |
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} |
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if (!function_exists('vdt')) { |
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function vdt($var, $var_name = null): void |
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{ |
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Debugger::visualDump($var, $var_name, true); |
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} |
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} |
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if (!function_exists('ddt')) { |
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function ddt($var, $var_name = null): void |
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{ |
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Debugger::visualDump($var, $var_name, true); |
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die; |
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} |
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} |
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} |
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HexMakina /
Debugger
