se/SE/se-lib/DBG.php

<?php

class DBG {

	public static function isActive($mode = null) {
		return true == V::get('_DBG_ON', false, $_SESSION);
	}

	public static function activate($mode = null) {// @used in User::auth()
		$_SESSION['_DBG_ON'] = true;
	}

	public static function deactivate($mode = 'all') {
		$_SESSION['_DBG_ON'] = false;
	}

	/**
	 * @param $reqKqy - key in $_REQUEST array (if true then always show)
	 * @param $reqValueExpr - expression to compare req value
	 *   true - always visible - only for fast DBG without $reqKey in REQUEST
	 *   '>*', '>=*', '<*', '<=*' - compare $reqValue
	 * examples:
	 *   - show when $_REQUEST['DBG_SCH'] == '1'
	 *     DBG::_('DBG_SCH', '1', "fieldsConfig({$idTable})", $fieldsConfig, __CLASS__, __FUNCTION__, __LINE__);
	 *   - show when $_REQUEST['DBG_SCH'] > '1'
	 *     DBG::_('DBG_SCH', '>1', "fieldsConfig({$idTable})", $fieldsConfig, __CLASS__, __FUNCTION__, __LINE__);
	 *   - show when any value: strlen($_REQUEST['DBG_SCH']) > 0
	 *     DBG::_('DBG_SCH', true, "fieldsConfig({$idTable})", $fieldsConfig, __CLASS__, __FUNCTION__, __LINE__);
	 *   - always show
	 *     DBG::_(true, true, "fieldsConfig({$idTable})", $fieldsConfig, __CLASS__, __FUNCTION__, __LINE__);
	 */
	public static function _($reqKey, $reqValueExpr, $label, $variable, $className, $functionName, $lineNumber, $borderColor = 'red') {
		if (!DBG::isActive()) return;
		$showDBG = false;
		$reqValue = (true === $reqKey || !$reqKey)? '' : V::get($reqKey, '', $_GET);
		if (true === $reqKey) {
			$showDBG = true;
		}
		else if (strlen($reqValue) == 0) {
			return;
		}
		else if ($reqValue == $reqValueExpr) {
			$showDBG = true;
		}
		else if (true === $reqValueExpr) {
			$showDBG = true;
		}
		else {
			if ('>=' == substr($reqValueExpr, 0, 2)) {
				if ($reqValue >= substr($reqValueExpr, 2)) {
					$showDBG = true;
				}
			}
			else if ('>' == substr($reqValueExpr, 0, 1)) {
				if ($reqValue > substr($reqValueExpr, 1)) {
					$showDBG = true;
				}
			}
			else if ('<=' == substr($reqValueExpr, 0, 2)) {
				if ($reqValue <= substr($reqValueExpr, 2)) {
					$showDBG = true;
				}
			}
			else if ('<' == substr($reqValueExpr, 0, 1)) {
				if ($reqValue < substr($reqValueExpr, 1)) {
					$showDBG = true;
				}
			}
			else {
				if ($reqValue = $reqValueExpr) {
					$showDBG = true;
				}
			}
		}
		if ($showDBG) {
?>
<pre style="max-height:200px;max-width:800px;overflow:auto;border:1px solid <?php echo $borderColor; ?>;text-align:left;"
		 ><?php echo "{$label} ({$className}::{$functionName}:{$lineNumber}):\n"; ?>
<?php print_r($variable);?>
</pre>
<?php
		}
	}

	public static function table($label, $rows, $className, $functionName, $lineNumber) {
		$params = array();
		$params['caption'] = "{$label} ({$className}::{$functionName}:{$lineNumber}):";
		$params['rows'] = $rows;
		UI::table($params);
	}

	public static function nicePrint($variable, $varName) {
		$cnt = '';
		ob_start();
			print_r($variable);
			$cnt = ob_get_contents();
		ob_end_clean();

		$outLines = array();
		$lines = explode("\n", $cnt);
		if ($varName) $lines[0] = '<b style="color:#ff5252">' . $varName . "</b> => {$lines[0]}";
		foreach ($lines as $line) {
			if ('(' == trim($line)) continue;
			if (')' == trim($line)) continue;
			if ('' == trim($line)) continue;
			if ('Array' == substr($line, -5) || 'stdClass' == substr($line, -5)) {
				$line = str_replace('Array', '<span style="color:#41a541">Array</span>', $line);
				$line = str_replace('stdClass', '<span style="color:#41a541">stdClass</span>', $line);
				$line .= ':';
			}
			if (($firstBracket = strpos($line, '[')) > 0) {
				$line = str_replace("\t", '  ', $line);
				$splitPos = ($firstBracket > 4)? ($firstBracket - 4) / 4 + 2 : 2;
				$line = substr($line, $firstBracket - $splitPos);

				$line = preg_replace('/\[(\w+)\]/', '[<span style="color:#5a5aff">\1</span>]', $line);
				$line = preg_replace('/\] \=\> (\w+)$/', '] => <span style="color:#e88501">\1</span>', $line);
			}
			$outLines[] = $line;
		}
		$outLines = implode("\n", $outLines);
		echo $outLines;
	}

}