44

validatefilename

validate_filename
SYNOPSIS

validate_filename($name)

DESCRIPTION

validate_filename returns true if $name is a valid file name, false otherwise.

CODE
  1. function validate_filename($name) {
  2.     return preg_match('/^[[:alnum:]]+[[:alnum:] \._-]*(\.[[:alnum:]]+)?$/', $name);
  3. }

validate_filename returns true if $name starts with an alphanumeric character followed by a series of alphanumeric characters, spaces, dots, underscores or dashes terminated by a dot and at least one alphanumeric character.

IMPORTANT: Adapt this function to the syntax of the file names accepted by the website. EXAMPLE: With the regular expression '/^[0-9\pL][0-9\pL \._+-]*(\.[[:alnum:]]+)$/u', accented characters are accepted and a file name must start with a letter or a digit and end with an extension with in between in option, letters, digits, spaces, dots, underscores, plus signs and dashes.

SEE ALSO

isfilenameallowed

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