How can data from a text file be properly mapped to a multidimensional array in PHP for efficient processing?

When reading data from a text file in PHP, it can be mapped to a multidimensional array for efficient processing by using functions like `file()` or `fopen()` to read the file line by line and then splitting each line into an array based on a delimiter. This array can then be added to a multidimensional array for further manipulation and processing. 

// Read data from text file into an array
$lines = file('data.txt', FILE_IGNORE_NEW_LINES);

// Initialize a multidimensional array
$multiArray = [];

// Loop through each line and split into an array based on a delimiter
foreach ($lines as $line) {
    $data = explode(',', $line);
    $multiArray[] = $data;
}

// Now $multiArray contains the data from the text file mapped to a multidimensional array for efficient processing

Keywords

PHP text file multidimensional array mapping efficient processing

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