How to match string based string on text file

Question

Simply in php we could replace a string by other string such as using a particular function, str_replace (), etc

Suppose I have a file.txt contains

text1
text2
text3
...
text n

and i have a variable $text like

$text = "I want to get text1 and text2";

How to get the strings (text1 and text2) based on the available strings in file.txt?

I want to have a new variable say ($new) which contains strings of $text that it fits on the string file.txt

So i have $new="text1 text2";

I still confused, how to adjust two text.

Any help wouldbe appreciated. Thanks.

I would get contents from file into array, explode text at space and loop and compare both arrays. If there's a match push it to a new array. Finally implode the result with spaces to get your final string. — elclanrs
– elclanrs, Commented May 19, 2013 at 23:35
Your question is a bit complicated, do you want to know, how to find text1 and text2 in a file? — samayo
– samayo, Commented May 19, 2013 at 23:36

likeitlikeit · Accepted Answer · 2013-05-19 23:36:20Z

5

Do it like this:

$fileTokens = explode(PHP_EOL, file_get_contents('file.txt'));
$textTokens = explode(' ', "I want to get text1 and text2");

$results = array_intersect($fileTokens, $textTokens);
var_dump($results);

To get the results as a space-delimited string, use this line

$stringResults = implode(' ', $results);
var_dump($stringResults);

answered May 19, 2013 at 23:36

likeitlikeit

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samayo Over a year ago

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