How can the array returned by file() be properly handled and manipulated to replace semicolons with commas in a CSV file in PHP?

The array returned by file() in PHP reads each line of a file into an array element. To replace semicolons with commas in a CSV file, you can loop through each element of the array, use str_replace() to replace semicolons with commas, and then write the modified lines back to the file. 

$fileLines = file('example.csv'); // Read file into array
$modifiedLines = array(); // Create an array to store modified lines

foreach ($fileLines as $line) {
    $modifiedLines[] = str_replace(';', ',', $line); // Replace semicolons with commas
}

file_put_contents('example.csv', implode("\n", $modifiedLines)); // Write modified lines back to file

Keywords

file array manipulation CSV semicolons

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