php dump 当前所有局部变量

xsmscb

　　虽然有xdebug，平时还是用log或是var_dump调试的时候居多。
　　经常想知道执行某个点时当前的变量情况，今天回来找了下参考php官网上 kailashbadu 的代码写了一个。
　　核心在于 get_defined_vars() 函数。另外也有取出所有常量的get_defined_constants() 函数。
　　
　　
/**
* @desc show the variable that are to be excluded from the list.
* $varList    array
* $excludeList    array
*/
function logVars($varList, $excludeList = null) {
if ($excludeList == null)
$excludeList = array('GLOBALS', '_FILES', '_COOKIE', '_POST', '_GET');
$list = array();
foreach ($varList as $key => $value) {
if (!in_array($key, $excludeList))
$list[$key] = $value;
}
echo '<pre>';
print_r($list);
echo '</pre>';
}
//some dummy variables; add your own or include a file.
$firstName = 'kailash';
$lastName = 'Badu';
$test = array('Pratistha', 'sanu', 'fuchhi');

logVars(get_defined_vars());
// results
/*
Array
(
[firstName] => kailash
[lastName] => Badu
[test] => Array
(
[0] => Pratistha
[1] => sanu
[2] => fuchhi
)
)
*/


　　
　　参考: http://cn.php.net/manual/en/function.get-defined-vars.php