Replace in .txt

[Readme]

Takes the data from the file (.txt) and replace it - Saving changes?

I searched the forum but did not find 

 

Bad code and slow

<?php
$string  = 'My name is';
$patterns = 'My name is';
$replacements = 'is name my';
echo str_replace($patterns, $replacements, $string ); 
?> 

[kenrbnsn]

Please explain more clearly what you want to do.

 

Ken

[Readme]

My English is not good but I try to explain.

 

Now i want to use array function... can be used for multiple lines.

This:

$new_contents = str_replace("My name is", "is name my", $contents);
Something like this:
$contents= array(
            array(My name is, is name my),
            array(Hi,Hello),
            array(Come back, I coming));

<?php
$file = 'textfile.txt';

if (file_exists($file)) {

    $ff = fopen($file, 'r+');
    $contents = file_get_contents($file, FILE_TEXT);
    $new_contents = str_replace("My name is", "is name my", $contents);
    file_put_contents($file, $new_contents, FILE_TEXT); 
    fclose($ff);

    $ff = fopen($file, 'r+');
    fwrite($ff, $new_contents);
    fclose($ff);

} else {

    echo "The file $filename does not exist";

}
?> 

[mraza]

<?php
$file = 'textfile.txt';

if (file_exists($file)) {

    $ff = fopen($file, 'r+');
    $contents = file_get_contents($file, FILE_TEXT);
$change= array("My name is", "Hi", "Come back");
$replace = array("is name my","Hello","I coming");
    $new_contents = str_replace($change, $replace, $contents);
    file_put_contents($file, $new_contents, FILE_TEXT); 
    fclose($ff);

    $ff = fopen($file, 'r+');
    fwrite($ff, $new_contents);
    fclose($ff);

} else {

    echo "The file $filename does not exist";

}
?> 

 

something like this?

[Readme]

No, mraza.

 

Example!

 

textfile.txt - words

I coming

The file filename does not exist

Tired of these ads?

 

Not work but sample
$replace = array("I coming","1 2 3");
$replace = array("The file filename does not exist","1 2 3 4");
$replace = array("Tired of these ads?","1 2 3 4 5");

 

textfile.txt - now looks like this

1 2 3

1 2 3 4

1 2 3 4 5

 

[mraza]

sorry but i am not clear what you are trying to say, last script i assumed you have one file named "textfile.txt" within same location you are running this script , you wants to read that file and find some words and replace them, if so that should work, other then not clear to me