Text_Diff_Renderer_inline::_changed( $orig, $final )

132    function _changed($orig, $final)133    {134        /* If we've already split on characters, just display. */135        if ($this->_split_level == 'characters') {136            return $this->_deleted($orig)137                . $this->_added($final);138        }139 140        /* If we've already split on words, just display. */141        if ($this->_split_level == 'words') {142            $prefix = '';143            while ($orig[0] !== false && $final[0] !== false &&144                   substr($orig[0], 0, 1) == ' ' &&145                   substr($final[0], 0, 1) == ' ') {146                $prefix .= substr($orig[0], 0, 1);147                $orig[0] = substr($orig[0], 1);148                $final[0] = substr($final[0], 1);149            }150            return $prefix . $this->_deleted($orig) . $this->_added($final);151        }152 153        $text1 = implode("\n", $orig);154        $text2 = implode("\n", $final);155 156        /* Non-printing newline marker. */157        $nl = "\0";158 159        if ($this->_split_characters) {160            $diff = new Text_Diff('native',161                                  array(preg_split('//', $text1),162                                        preg_split('//', $text2)));163        } else {164            /* We want to split on word boundaries, but we need to preserve165             * whitespace as well. Therefore we split on words, but include166             * all blocks of whitespace in the wordlist. */167            $diff = new Text_Diff('native',168                                  array($this->_splitOnWords($text1, $nl),169                                        $this->_splitOnWords($text2, $nl)));170        }171 172        /* Get the diff in inline format. */173        $renderer = new Text_Diff_Renderer_inline174            (array_merge($this->getParams(),175                         array('split_level' => $this->_split_characters ? 'characters' : 'words')));176 177        /* Run the diff and get the output. */178        return str_replace($nl, "\n", $renderer->render($diff)) . "\n";179    }
When	Instructions	Calls it makes
always	13–35	`->_deleted(), ->_added()`
always	49–50	`->_splitOnWords(), ->_splitOnWords(), ->getParams(), split_level(), array_merge(), ->render()`
always	50–51	`preg_split(), preg_split(), ->getParams(), split_level(), array_merge(), ->render()`
PHP	Compiled	Executed	Branches	Notes
8.6-dev	114	13–51	8
8.5	114	13–51	8
8.4	114	13–51	8	26 fewer instructions than PHP 8.3
8.3	140	13–62	8
8.2	140	13–62	8
8.1	140	13–62	8
7.4	140	13–62	8