我遇到了解析错误，并且我认为是由于引号引起的"time"。我怎样才能将其视为一个整体字符串？

<?php
    $text1 = 'From time to "time" this submerged or latent theater in 'Hamlet'
    becomes almost overt. It is close to the surface in Hamlet's pretense of madness,
    the "antic disposition" he puts on to protect himself and prevent his antagonists
    from plucking out the heart of his mystery. It is even closer to the surface when
    Hamlet enters his mother's room and holds up, side by side, the pictures of the
    two kings, Old Hamlet and Claudius, and proceeds to describe for her the true
    nature of the choice she has made, presenting truth by means of a show.
    Similarly, when he leaps into the open grave at Ophelia's funeral, ranting in
    high heroic terms, he is acting out for Laertes, and perhaps for himself as well,
    the folly of excessive, melodramatic expressions of grief.";

    $text2 = 'From time to "time"';

    similar_text($textl, $text2, $p);
    echo "Percent: $p%";

问题是我不能\在每个引号之前手动添加。这是我需要比较的实际文本。