如何在php str_replace函数中加粗文本？

Question

<?php
$xml = simplexml_load_file("xmldocumentation.xml") 
   or die("Error: Cannot create object");


 foreach($xml->children() as $pages){
   foreach($pages->children() as $page => $data){
   echo $data->id;
   echo '<br>';
   echo $data->timestamp;
   //echo $data->revision;
   echo "<br />";
   echo str_replace("/===[^=]+===/","bold heading here", $data->text);
   echo '<p class="text">'.$data->text.'</p>';

  }
}

?>  

Using php how do i bold the text replaced by php's str_replace function and display the modified content with bold headings ie. ' '?

Thanks

Answer 1

Change

    echo str_replace("/===[^=]+===/","bold heading here", $data->text);

to

    $data->text = preg_replace("/===([^=])+===/","<strong>$1</strong>", $data->text);

You need preg_replace for regex, and need to capture the text you want to bold (via the () ), and then enclose that text in an HTML element that will give you the desired formatting.

Answer 2

A <b> </b> can do the trick!

$strlst = 'lorem ipsum';

$strlst = explode( ' ' , $strlst );
function wrapTag($inVal){
   return '<b>'.$inVal.'</b>';
}
$replace = array_map( 'wrapTag' , $strlst );

$Content = str_replace( $strlst , $replace , $Content );

echo $Content;