PHP函数，用于确定在哪个文件和行中设置变量

使用PHP魔术常量

__FILE__  -- The full path and filename of the file. If used inside an include, the name of the included file is returned. Since PHP 4.0.2, __FILE__ always contains an absolute path with symlinks resolved whereas in older versions it contained relative path under some circumstances.
__LINE__  -- The current line number of the file.

链接在这里

享受:)

我不这么认为。

但这并不妨碍您使用token_get_all()函数和所有令牌列表创建自己的 !

我是这样做的:

/**
 * Where Are My Variables Assigned!?
 * @author Smuuf
 */
class WAMVA {
    public function scan($file, $allAssignments = false) {
        if (!is_file($file)) return false;
        // Get all tokens from the file and initialize result array
        $tokens = token_get_all(file_get_contents($file));
        $result = array();
        // Go through all tokens
        foreach ($tokens as $index => $token) {
            // Variable token ('$...')
            if (isset($token[0]) && $token[0] === T_VARIABLE){
                // Skip all whitespaces
                $add = 1;
                while (is_array($tokens[$index + $add]) && $tokens[$index + $add][0] === T_WHITESPACE) {
                    $add++;
                }
                // And if next token is an assigment operator, save the variable token
                if (self::isAssignment($tokens[$index + $add])) {
                    // Get all assignments? Or just the first present in the file?
                    if ($allAssignments) {
                        $result[] = array("variable" => substr($token[1], 1), "line" => $token[2]);
                    } else {
                        $key = substr($token[1], 1);
                        if (!isset($result[$key])) $result[$key] = $token[2];
                    }
                }
            }
        }
        return $result;
    }
    protected function isAssignment($input) {
        if ($input == "=") {
            return true;
        } elseif (is_array($input)) {
            // http://www.php.net/manual/en/tokens.php
            switch ($input[0]) {
                case T_AND_EQUAL:
                case T_CONCAT_EQUAL:
                case T_DIV_EQUAL:
                case T_MINUS_EQUAL:
                case T_MOD_EQUAL:
                case T_MUL_EQUAL:
                case T_OR_EQUAL:
                case T_PLUS_EQUAL:
                case T_SL_EQUAL:
                case T_SR_EQUAL:
                case T_XOR_EQUAL:
                    return true;
            }
        }
    }
}

用法:

print_r(WAMVA::scan("./test.php", true));

输出(allAssignments美元= false):

Array
(
    [translation_array] => 11
    [target_language] => 12
    [lang_abbr] => 41
    [translated] => 47
)

输出(allAssignments美元= true):

Array
(
    [0] => Array
        (
            [variable] => translation_array
            [line] => 11
        )
    [1] => Array
        (
            [variable] => target_language
            [line] => 12
        )
    [2] => Array
        (
            [variable] => target_language
            [line] => 24
        )
    [3] => Array
        (
            [variable] => translation_array
            [line] => 25
        )
    [4] => Array
        (
            [variable] => lang_abbr
            [line] => 41
        )
    [5] => Array
        (
            [variable] => translated
            [line] => 47
        )
)