check whether stringA is in file1.txt

[gundamz]

Hi all,

I need help to check whether stringA is in file1.txt

stringA is from file.txt .it is open , then some soft of loop is activated and check against file1.txt . after check the whole file, if there's no match, stringA is insert into file1.txt

can an expert give a snipplet on this?

Thanks.

[devinemke]

<?php
$path = '/path/to/file1.txt';
$stringA = 'this is a string';

$contents = file_get_contents($path) or exit('could not read file');

if (strpos($contents, $stringA) !== false)
{
	echo '$stringA is already in file1.txt';
}
else
{
	$handle = fopen($path, 'a');
	fwrite($handle, $stringA) or exit('could not write to file');
	echo '$stringA written to file1.txt';
}
?>

[gundamz]

Hi devin,

Thanks for the quick help.

my stringA is obtain from a list of words in file.txt .

how do i open file.txt and meanwhile use it to compare with file2.txt ?

[devinemke]

gundamz wrote:

how do i open file.txt and meanwhile use it to compare with file2.txt ?

[man]file_get_contents[/man]