PHP gets the file in which the specified function is defined and the line number where it is located_PHP Tutorial

When debugging open source code and want to see the definition of a certain function, you need to locate its location. It can be automatically prompted in IDEs like zend studio, but what can we do when such development tools are not installed? Refer to the following code snippet, which may contain what you need.

Copy code The code is as follows:

function a() {
}

class b {
public function f() {
}
}

function function_dump($funcname) {
try {
if(is_array($funcname)) {
$func = new ReflectionMethod($funcname[0], $funcname[1]);
           $funcname = $funcname[1];
                                                                                                                                                          > echo $ e->getMessage();
return;
}
$start = $func->getStartLine() - 1;
$end = $func->getEndLine() - 1 ;
$filename = $func->getFileName();
echo "function $funcname defined by $filename($start - $end)n";
}
function_dump('a' );
function_dump(array('b', 'f'));
$b = new b();
function_dump(array($b, 'f'));
? >

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truehttp: //www.bkjia.com/PHPjc/767086.htmlTechArticleWhen debugging open source code and want to see the definition of a certain function, you need to locate its location. It can be automatically prompted in an IDE like zend studio, but when this is not installed...