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Summery Summery
Computes a diff between sequences of strings.
Syntax Syntax
Description Description
This can be used to compute things like case-insensitve diffs, or diffs which ignore changes in white-space.
Parameters Parameters
- $from_lines
-
(Required) An array of strings.
- $to_lines
-
(Required) An array of strings.
- $mapped_from_lines
-
(Required) This array should have the same size number of elements as $from_lines. The elements in $mapped_from_lines and $mapped_to_lines are what is actually compared when computing the diff.
- $mapped_to_lines
-
(Required) This array should have the same number of elements as $to_lines.
Source Source
File: wp-includes/Text/Diff.php
function __construct($from_lines, $to_lines,
$mapped_from_lines, $mapped_to_lines)
{
assert(count($from_lines) == count($mapped_from_lines));
assert(count($to_lines) == count($mapped_to_lines));
parent::Text_Diff($mapped_from_lines, $mapped_to_lines);
$xi = $yi = 0;
for ($i = 0; $i < count($this->_edits); $i++) {
$orig = &$this->_edits[$i]->orig;
if (is_array($orig)) {
$orig = array_slice($from_lines, $xi, count($orig));
$xi += count($orig);
}
$final = &$this->_edits[$i]->final;
if (is_array($final)) {
$final = array_slice($to_lines, $yi, count($final));
$yi += count($final);
}
}
}