CODEWITHSUNDEEP
phpsplit
user3848987
user3848987

Reputation: 1657

Split 200MB textfile with delimiter-line in PHP

I need to split a big text-file (200MB) into multiple smaller files. The split should be based on a defined text-line.

Big file

This is a title
Lorem Ipsum
New Chapter
This is a title
Lorem Ipsum

So the line This is a title should mark where to split the file and it also should be the first line of the new file. So the result would be:

First file

This is a title
Lorem Ipsum
New Chapter

Second file

This is a title
Lorem Ipsum

I can split the textfile into defined byte-sizes, but this is not, what I need:

$i = 1;
$fp = fopen("big_file.txt",'r');
while(! feof($fp)) {
    $contents = fread($fp,1000);
    file_put_contents($i.'.txt',$contents);
    $i++;
}

I need to split for a defined line.

Upvotes: 0

Views: 113

Answers (1)

user3142695
user3142695

Reputation: 17332

Just go line by line and search for the delimiter:

$i = 1;
$file = fopen("big_file.txt", "r");
while(!feof($file)){
    $line = fgets($file);
    if ($line == "delimiter") {
        if ($contents) file_put_contents($i.'.txt',$contents);
        $contents = '';
        $i++;
    }
    else $contents .= $contents;
}
fclose($file);

Upvotes: 1

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