PHP中的fscanf()函数

The fscanf() function parses input from an open file according to a specified format. It returns the values parsed as an array, if only two parameters were passed.

Syntax

fscanf(file_pointer, format, mixed)

Parameters

• file_pointer − A file system pointer resource created using fopen().

• format − Specify the format. Here are the values:

  • %% - Returns a percent
  • %b - Binary number
  • %c - The character according to the ASCII value
  • %f - Floating-point number
  • %F - Floating-point number
  • %o - Octal number
  • %s - String
  • %d - Signed decimal number
  • %e - Scientific notation
  • %u - Unsigned decimal number
  • %x - Hexadecimal number for lowercase letters
  • %X - Hexadecimal number for uppercase letters

• mixed − Specify the assigned values. Optional.

Return

The fscanf() function returns the values parsed as an array, if only two parameters were passed.

Example

<?php
   $file_pointer = fopen("new.txt", "r");
   while ($playerrank = fscanf($handle, "%st%d
")) {
      list ($name, $rank) = $playerrank;
      echo “$name got rank $rank.”;
   }
   fclose($file_pointer);
?>

Output

Amit got rank 2