PREG_OFFSET_CAPTURE

PREG_OFFSET_CAPTURE is one of the accepted parameters for:

• preg_match parameter #4 (optionally as a bitmask)
• preg_match_all parameter #4 (optionally as a bitmask)

PREG constant: PREG_OFFSET_CAPTURE — If this flag is set, for every occurring match the appendant byte offset will also be returned. Note that this changes the return values in an array where every element is an array consisting of the matched string at offset 0 and its string offset within subject at offset 1.

PREG_OFFSET_CAPTURE = 256;