How Can I Reliably Split a String by Newline Characters in PHP Across Different Systems and Browsers?

Handling New Line Separators in PHP String Explosions

In PHP, the task of segregating a string into an array based on new line characters can prove tricky. Previously attempted code using explode('nr') falls short, prompting the question of how to effectively handle this situation.

Best Practices for System Independence

The recommended approach is to leverage the PHP constant PHP_EOL, which dynamically adapts to the operating system's native end-of-line character. This ensures code compatibility across platforms.

$skuList = explode(PHP_EOL, $_POST['skuList']);

Consider System-Dependent Data

While system independence is beneficial, it's crucial to anticipate potential issues when transferring data between different operating systems. Constants like PHP_EOL may vary, rendering stored data unusable. To prevent this, carefully parse data before storage to eliminate system-dependent aspects.

Browser-Specific Considerations

It's worth noting that the system's EOL is distinct from the EOL used by web browsers on various operating systems. To address this, employ the regular expression preg_split('/rn|r|n/') to cater to all EOL variations:

$skuList = preg_split('/\r\n|\r|\n/', $_POST['skuList']);

By adopting these practices, developers can confidently explode PHP strings based on new line characters, whether in system-independent or browser-specific contexts.

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