What are potential risks associated with parsing and analyzing large text blocks in PHP?

When parsing and analyzing large text blocks in PHP, potential risks include memory exhaustion and performance issues due to the large amount of data being processed. To mitigate these risks, consider breaking down the text block into smaller chunks for analysis, using efficient algorithms and data structures, and optimizing the code for better performance.

// Example of parsing and analyzing large text blocks in PHP
$text = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.";

// Split the text block into smaller chunks for analysis
$chunks = str_split($text, 50); // Split text into chunks of 50 characters

foreach($chunks as $chunk) {
    // Perform analysis on each chunk
    echo $chunk . "\n";
}