php - how to replace duplicate text using highlight_phrase in codeigniter -


i new codeigniter trying learn it. trying replace text anchor tag. 

but problem if text inside <a> tag has property of href,

it replaced. want replace text inside anchor tag , not include href. here code.

<?php     $string = "text1 text1-a text1-b";   $array  = explode(' ', $string);   $tofind = "text1";   foreach($array $value){      $string = highlight_phrase($string,$tofind,"<a href=\"{$value}\">","</a>");    }   echo $string;  ?>   //the output should  // <a href="text1">text1</a> text1-a text1-b   // **wrong** result replace "text1" inside href.  // <a href="text1">text1</a>   // <a href="<a href="text1"></a>-a">text1-a</a>  // <a href="<a href="text1"></a>-a">text2-a</a>

does know how fix this? thanks


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