What Is Difference Betweeen include_once() and require_once()in PHP?

hi

dear all

i have to need the help for difference between include_once() and require_once in PHP

so p'se anyone advised to me

Thanks

Comments

  • : hi
    :
    : dear all
    :
    : i have to need the help for difference between include_once() and
    : require_once in PHP
    :
    : so p'se anyone advised to me
    :
    : Thanks
    :

    I believe the difference is that include generates an error message if it can't find the file and require generates a fatal error and stops script execution.

  • That's right:

    - include() includes a file in memory no matter if it has already been loaded
    - include_once() includes a file in memory only if it has not been loaded already
    - require() includes a file in memory no matter if it has already been loaded. if the file cannot be loaded, the script is aborted
    - require_once() does the same as require(), but only if the file hasn't been included yet. if the file's already in memory, it has no effect.

    F
  • ...and if the file was already included, both this functions return TRUE

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