What methods can be used to extract strings from a text file and write them into an array in PHP?

To extract strings from a text file and write them into an array in PHP, you can read the contents of the file line by line using functions like `fgets()` or `file()` and then use regex or string manipulation functions to extract the desired strings. These extracted strings can then be stored in an array for further processing. 

<?php
// Open the text file for reading
$file = fopen('example.txt', 'r');

// Initialize an empty array to store the extracted strings
$stringsArray = [];

// Read the file line by line and extract strings
while(!feof($file)) {
    $line = fgets($file);
    // Use regex or string manipulation functions to extract strings
    // For example, if you want to extract words separated by spaces:
    $words = explode(' ', $line);
    foreach($words as $word) {
        $stringsArray[] = $word;
    }
}

// Close the file
fclose($file);

// Output the extracted strings in the array
print_r($stringsArray);
?>

Keywords

file_get_contents explode preg_match_all fopen fgets

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