What are some potential issues to consider when searching for and extracting data from a large text file in PHP?

One potential issue when searching for and extracting data from a large text file in PHP is memory consumption. Reading the entire file into memory at once can lead to high memory usage, especially with large files. One way to solve this is to read the file line by line or in chunks to reduce memory usage. 

// Open the file for reading
$handle = fopen('large_file.txt', 'r');

// Read the file line by line
while (($line = fgets($handle)) !== false) {
    // Process each line as needed
    echo $line;
}

// Close the file handle
fclose($handle);

Keywords

file_get_contents memory_limit fopen fgets parsing

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