Example of how to specify the default value for a php function

Source: Internet
Author: User
Example of how to specify the default value for a php function

  1. Php function specifies the default value -bbs.it-home.org
  2. Function printMe ($ param = NULL)
  3. {
  4. Print $ param;
  5. }
  6. PrintMe ("This is test ");
  7. PrintMe ();
  8. ?>

Output result: This is test

Example 2: use the default values of php function parameters. set and use the default values in php function parameters. Code:

  1. Php function parameter default-bbs.it-home.org
  2. Function textonweb ($ content, $ fontsize = 3 ){
  3. Echo "$ content ";
  4. }
  5. Textonweb ("
    ", 7 );
  6. Textonweb ("AA.
    ");
  7. Textonweb ("AAA.
    ");
  8. Textonweb ("AAAA!
    ");
  9. ?>

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