parsekit_compile_string

(PECL parsekit >= 0.2.0)

parsekit_compile_string — Compile a string of PHP code and return the resulting op array

说明

parsekit_compile_string ( string $phpcode [, array &$errors [, int $options = PARSEKIT_QUIET ]] ) : array
Warning

此函数是实验性的。此函数的表象，包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担 。

参数

phpcode

A string containing phpcode. Similar to the argument to eval().

errors

A 2D hash of errors (including fatal errors) encountered during compilation. Returned by reference.

options

One of either PARSEKIT_QUIET or PARSEKIT_SIMPLE. To produce varying degrees of verbosity in the returned output.

返回值

Returns a complex multi-layer array structure as detailed below.

范例

Example #1 parsekit_compile_string() example

<?php
  $ops = parsekit_compile_string('
echo "Foo\n";
', $errors, PARSEKIT_QUIET);

  var_dump($ops);
?>

以上例程会输出：

array(20) {
  ["type"]=>
  int(4)
  ["type_name"]=>
  string(14) "ZEND_EVAL_CODE"
  ["fn_flags"]=>
  int(0)
  ["num_args"]=>
  int(0)
  ["required_num_args"]=>
  int(0)
  ["pass_rest_by_reference"]=>
  bool(false)
  ["uses_this"]=>
  bool(false)
  ["line_start"]=>
  int(0)
  ["line_end"]=>
  int(0)
  ["return_reference"]=>
  bool(false)
  ["refcount"]=>
  int(1)
  ["last"]=>
  int(3)
  ["size"]=>
  int(3)
  ["T"]=>
  int(0)
  ["last_brk_cont"]=>
  int(0)
  ["current_brk_cont"]=>
  int(-1)
  ["backpatch_count"]=>
  int(0)
  ["done_pass_two"]=>
  bool(true)
  ["filename"]=>
  string(17) "Parsekit Compiler"
  ["opcodes"]=>
  array(3) {
    [8594800]=>
    array(5) {
      ["opcode"]=>
      int(40)
      ["opcode_name"]=>
      string(9) "ZEND_ECHO"
      ["flags"]=>
      int(768)
      ["op1"]=>
      array(3) {
        ["type"]=>
        int(1)
        ["type_name"]=>
        string(8) "IS_CONST"
        ["constant"]=>
        &string(4) "Foo
"
      }
      ["lineno"]=>
      int(2)
    }
    ["859484C"]=>
    array(6) {
      ["opcode"]=>
      int(62)
      ["opcode_name"]=>
      string(11) "ZEND_RETURN"
      ["flags"]=>
      int(16777984)
      ["op1"]=>
      array(3) {
        ["type"]=>
        int(1)
        ["type_name"]=>
        string(8) "IS_CONST"
        ["constant"]=>
        &NULL
      }
      ["extended_value"]=>
      int(0)
      ["lineno"]=>
      int(3)
    }
    [8594898]=>
    array(4) {
      ["opcode"]=>
      int(149)
      ["opcode_name"]=>
      string(21) "ZEND_HANDLE_EXCEPTION"
      ["flags"]=>
      int(0)
      ["lineno"]=>
      int(3)
    }
  }
}

参见