In what scenarios would it be more efficient to use file() instead of fgets for reading and extracting specific content from a file in PHP?

If you need to read an entire file into an array in PHP, it is more efficient to use the file() function instead of repeatedly calling fgets(). This is because file() reads the entire file into an array in one operation, while fgets() reads one line at a time. This can be particularly useful when you need to extract specific content from the file, as you can then easily iterate over the array to find the desired information. 

// Using file() to read the entire file into an array
$lines = file('example.txt');

foreach ($lines as $line) {
    // Extract specific content from each line
    if (strpos($line, 'specific content') !== false) {
        echo $line;
    }
}

Keywords

file fgets efficiency reading extraction

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