RegExp replace a specific XML/HTML TAG in PHP
I have a little script that replace some text, that come from a xml file, this is an example:
<b>Hello world,</b>
<include file="dynamiccontent.php" />
<img src="world.png" />
a lot of <i>stuff</i>
Obviosly the string is much more longer, but I would like to replace the <include
file="*" /> with the content of the script in the filename, at time I use an explode that find
<include file="
but I think there is a better method to solve it. This is my code:
$arrContent = explode("<include ", $this->objContent->content);
foreach ($contenuto as $piece) { // Parsing array to find the include
$startPosInclude = stripos($piece, "开发者_运维问答file=\""); // Taking position of string file="
if ($startPosInclude !== false) { // There is one
$endPosInclude = stripos($piece, "\"", 6);
$file = substr($piece, $startPosInclude+6, $endPosInclude-6);
$include_file = $file;
require ($include_file); // including file
$piece = substr($piece, $endPosInclude+6);
}
echo $piece;
}
I'm sure that a regexp done well can be a good replacement.
Edited to allow multiple includes and file checking.
$content = '<b>Hello world,</b>
<include file="dynamiccontent.php" />
<img src="world.png" />
a lot of <i>stuff</i>';
preg_match_all('!<include file="([^"]+)" />!is', $content, $matches);
if(count($matches) > 0)
{
$replaces = array();
foreach ($matches[1] as $file)
{
$tag = '<include file="'.$file.'" />';
if(is_file($file) === true)
{
ob_start();
require $file;
$replaces[$tag] = ob_get_clean();
}
else
{
$replaces[$tag] = '{Include "'.$file.'" Not Found!}';
}
}
if(count($replaces) > 0)
{
$content = str_replace(array_keys($replaces), array_values($replaces), $content);
}
}
echo $content;
So you wanna know what the value of the attribute file of the element include? Try:
$sgml = <<<HTML
<b>Hello world,</b>
<include file="dynamiccontent.php" />
<img src="world.png" />
a lot of <i>stuff</i>
HTML;
preg_match('#<include file="([^"]+)"#',$sgml,$matches);
print_r($matches[1]); // prints dynamiccontent.php
If not, please Elaborate.
/(?<=<include file=").+(?=")/
matches "dynamiccontent.php" from your input string
加载中,请稍侯......
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