PHP read file comments NOT file content - forgotten

问题

Sorry folks forgotten this one, I need to read the first "batch" of comment in a php file example would be:

<?php
/** This is some basic file info **/
?>
<?php This is the "file" proper" ?>

I need to read the first comment inside another file but I have totally forgotten how to get the /** This is some basic file info **/ as a string Sorry but thanks in adavance

回答1:

There's a token_get_all($code) function which can be used for this and it's more reliable than you first might think.

Here's some example code to get all comments out of a file (it's untested, but should be enough to get you started):

<?php

    $source = file_get_contents( "file.php" );

    $tokens = token_get_all( $source );
    $comment = array(
        T_COMMENT,      // All comments since PHP5
        T_ML_COMMENT,   // Multiline comments PHP4 only
        T_DOC_COMMENT   // PHPDoc comments      
    );
    foreach( $tokens as $token ) {
        if( !in_array($token[0], $comment) )
            continue;
        // Do something with the comment
        $txt = $token[1];
    }

?>

回答2:

i think you can also try this.

/**
* Return first doc comment found in this file.
* 
* @return string
*/
function getFileCommentBlock($file_name)
  {
    $Comments = array_filter(
       token_get_all( file_get_contents( $file_name ) ),function($entry) {
           return $entry[0] == T_DOC_COMMENT;
       }
   );
    $fileComment = array_shift( $Comments );
    return $fileComment[1];
}

回答3:

Use this:

preg_match("/\/\*\*(.*?)\*\*\//", $file, $match);
$info = $match[1];

回答4:

Is this what you mean?

$file_contents = '/**

sd
asdsa
das
sa
das
sa
a
ad**/';

preg_match('#/\*\*(.*)\*\*/#s', $file_contents, $matches);

var_dump($matches);

回答5:

function find_between($from,$to,$string){
   $cstring = strstr($string, $from);
   $newstring = substr(substr($cstring,0,strpos($cstring,$to)),1);
   return $newstring;
}

then just call : $comments = find_between('/\*\*','\*\*/',$myfileline);

来源：https://stackoverflow.com/questions/3228978/php-read-file-comments-not-file-content-forgotten

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