$sanitizer->fieldSubfield() method

Sanitize as a field name but with optional subfield(s) like “field.subfield”

  • Periods must be present to indicate subfield(s), otherwise behaves same as fieldName() sanitizer.
  • By default allows just one subfield. To allow more, increase the $limit argument.
  • To allow any quantity of subfields, specify -1.
  • To reduce a field.subfield... combo to just field specify 0 for limit argument.
  • Maximum length of returned string is (128 + ($limit * 128)).

Available since version 3.0.126.


echo $sanitizer->fieldSubfield('a.b.c'); // outputs: a.b (default behavior)
echo $sanitizer->fieldSubfield('a.b.c', 2); // outputs: a.b.c
echo $sanitizer->fieldSubfield('a.b.c', 0); // outputs: a
echo $sanitizer->fieldSubfield('a.b.c', -1); // outputs: a.b.c (any quantity)
echo $sanitizer->fieldSubfield('foo bar.baz'); // outputs: foo_bar.baz
echo $sanitizer->fieldSubfield('foo bar baz'); // outputs: foo_bar_baz


// basic usage
$string = $sanitizer->fieldSubfield(string $value);

// usage with all arguments
$string = $sanitizer->fieldSubfield(string $value, int $limit = 1);



Value to sanitize

limit (optional)int

Max allowed quantity of subfields, or use -1 for any quantity (default=1).

Return value


$sanitizer methods and properties

API reference based on ProcessWire core version 3.0.236

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