How can one efficiently iterate through multiple lines of code in PHP and apply a specific operation to each line?

When iterating through multiple lines of code in PHP and applying a specific operation to each line, you can use a loop such as a foreach loop to go through each line one by one. Inside the loop, you can perform the desired operation on each line of code. 

$lines = file('file.txt'); // Read the lines of code from a file into an array

foreach ($lines as $line) {
    // Apply a specific operation to each line of code here
    // For example, you can echo the line or manipulate it in some way
    echo $line;
}

Keywords

PHP iteration loop operation multiple lines

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