func_get_args

func_get_args -- Returns an array comprising a function's argument list.

説明

int func_get_args(void );

Returns an array in which each element is the corresponding member of the current user-defined function's argument list. func_get_args() will generate a warning if called from outside of a function definition.

  1 
  2  <?php
  3  function foo() {
  4     $numargs = func_num_args();
  5     echo "Number of arguments: $numargs<br>\n";
  6     if ( $numargs >= 2 ) {
  7        echo "Second argument is: " . func_get_arg( 1 ) . "<br>\n";
  8     }
  9     $arg_list = func_get_args();
 10     for ( $i = 0; $i < $numargs; $i++ ) {
 11        echo "Argument $i is: " . $arg_list[$i] . "<br>\n";
 12     }
 13  } 
 14  
 15  foo( 1, 2, 3 );
 16  ?>
 17  	  

func_get_args() may be used in conjunction with func_num_args() and func_get_arg() to allow user-defined functions to accept variable-length argument lists.

注意: This function was added in PHP 4.