fopen and pref_replace()? - need to do a find & replace in multiple files...

[nikefido]

Hey - I was wondering what the procedure was for opening a file and then doing a find and replace (preg_replace?) to each file.

 

Not asking you to write the code, I can do that, but I'm not sure if i can FIND a certain string that's in the file and then replace it with another string?

 

Thanks!

 

(i can supply my code so far, but it doesn't have anything with this problem of it, it's just the recursive function to go through the file directory.)

 

Do I have to use file_get_contents() ?

[rhodesa]

yup...i would would use file_get_contents() to put it in a variable, use preg_replace() to do your manipulation of the variable, then file_put_contents() to write it back to the file. Then put that code inside your loop that goes over each file.

[nikefido]

yup...i would would use file_get_contents() to put it in a variable, use preg_replace() to do your manipulation of the variable, then file_put_contents() to write it back to the file. Then put that code inside your loop that goes over each file.

so i need to get all the contents (file_get_contents(), then delete all the contents( ftruncate($handle, 0); ), then put them back(file_put_contents()

 

I assume I should truncate it just to be sure.

 

What about formatting of the file (they are html pages)? Will it write it back as all one line?

[rhodesa]

no need to truncate, file_put_contents() will replace the contents of the file

 

new lines will be preserved unless otherwise altered by preg_replace()

[laffin]

that all depends if file_get_contents can fit the file into memory. if not ya will prolly end up doing file chunking, reading a chunk of the file checking it, than cycle until eof.

 

[nikefido]

that all depends if file_get_contents can fit the file into memory. if not ya will prolly end up doing file chunking, reading a chunk of the file checking it, than cycle until eof.

 

 

they are all .html or .htm files that will be read - they will not be too large in length..

 

 

Here is a bit of my (pseudo) code. Do I need to use fopen with file_get_contents and such?

Am I using file_put_contents correctly? These files that I am reading through will all be local...

 

$file_extension = strtolower(substr(strrchr($filename,"."),1));
if(strcmp($file_extension, 'htm')==0 || strcmp($file_extension, 'html')==0) {
	//if TRUE, find </body> and replace with snippet
	$content=file_get_contents("$file",FALSE,NULL,0,20);
	preg_replace($pattern, $replacement, $content);
	file_put_content($filepath, $snippet, FALSE, NULL);
}

[rhodesa]

a little simpler...

 

<?php
  if(substr($fileName,-4) == '.htm' || substr($fileName,-5) == '.html'){
    //if TRUE, find </body> and replace with snippet
    $content = preg_replace($pattern, $replacement, file_get_contents($fileName));
    file_put_contents($fileName, $content);
  }
?>

[nikefido]

<3

[nikefido]

so i just want to replace "</body>" with someText</body>

 

so the REGEX pattern is just.. '</body>' .. correct? and the replacement is just a string, correct?

 

 

Thanks for all your quick answers!

[rhodesa]

in that case, you str_replace

 

<?php
  $text = "This is the text I want to add";
  if(substr($fileName,-4) == '.htm' || substr($fileName,-5) == '.html'){
    //if TRUE, find </body> and replace with snippet
    $content = str_replace('</body>',$text.'</body>', file_get_contents($fileName));
    file_put_contents($fileName, $content);
  }
?>

[nikefido]

It's not working - output doesn't replace </body> with my string! wtf!

output:

my string with </body>

<?php

function readIt($start_dir='.') {

if (is_dir($start_dir)) {
	$fh = opendir($start_dir);
	while (($file = readdir($fh)) !== false) {
		// loop through the files, skipping ".", "..", ".DS_Store", and ".htaccess" then recursing if necessary
		if (strcmp($file, '.')==0 || strcmp($file, '..')==0 || strcmp($file, ".DS_Store")==0 || strcmp($file, ".htaccess")==0) continue;
		$filepath = $start_dir . '/' . $file;
		if ( is_dir($filepath) ) {
			readIt($filepath); //run recursively if a directory
		} else {
			//test for .htm or .html
			$file_extension = strtolower(substr(strrchr($file,"."),1));
			if(strcmp($file_extension, 'htm')==0 || strcmp($file_extension, 'html')==0) {
				echo "<p>" . $filepath . "</p>"; //want to know filepath of all .htm/.html files
				//if TRUE, find </body> and replace with code snippet
				$content = str_replace('</body>', $snippet.'</body>', 'my string with </body>'/*file_get_contents($filepath)*/);
    					//file_put_contents($filepath, $content);
				echo $content;
			}
		}
	}//end while
	closedir($fh);
	echo "<p>PROCESS COMPLETE</p>";
} else {
	echo "Valid directory not supplied or improper file permissions set";
}//endif(is_dir)
}//end function


$dir = "/Users/Chris/Sites/_resources"; //directory to start

$snippet = "my stuff";
readIt($dir);
?>

[nikefido]

i think it's a scope issue...

[rhodesa]

yup, the function can't see the snipper variable. the proper way is to pass that variable as an argument.

 

<?php

function readIt($start_dir='.',$snippet='') {

if (is_dir($start_dir)) {
	$fh = opendir($start_dir);
	while (($file = readdir($fh)) !== false) {
		// loop through the files, skipping ".", "..", ".DS_Store", and ".htaccess" then recursing if necessary
		if (strcmp($file, '.')==0 || strcmp($file, '..')==0 || strcmp($file, ".DS_Store")==0 || strcmp($file, ".htaccess")==0) continue;
		$filepath = $start_dir . '/' . $file;
		if ( is_dir($filepath) ) {
			readIt($filepath,$snippet); //run recursively if a directory
		} else {
			//test for .htm or .html
			$file_extension = strtolower(substr(strrchr($file,"."),1));
			if(strcmp($file_extension, 'htm')==0 || strcmp($file_extension, 'html')==0) {
				echo "<p>" . $filepath . "</p>"; //want to know filepath of all .htm/.html files
				//if TRUE, find </body> and replace with code snippet
				$content = str_replace('</body>', $snippet.'</body>', 'my string with </body>'/*file_get_contents($filepath)*/);
    					//file_put_contents($filepath, $content);
				echo $content;
			}
		}
	}//end while
	closedir($fh);
	echo "<p>PROCESS COMPLETE</p>";
} else {
	echo "Valid directory not supplied or improper file permissions set";
}//endif(is_dir)
}//end function


$dir = "/Users/Chris/Sites/_resources"; //directory to start

$snippet = "my stuff";
readIt($dir,$snippet);
?>