What are some effective strategies for making text manipulation in PHP case-insensitive?

When manipulating text in PHP, one effective strategy for making the manipulation case-insensitive is to use functions like strtolower() or strtoupper() to convert the text to a consistent case before performing any comparisons or modifications. This ensures that the text is treated in a case-insensitive manner, regardless of the original case of the input. 

$text = "Hello World";
$lowercaseText = strtolower($text);

// Perform case-insensitive manipulation on $lowercaseText

Keywords

strtolower strtoupper strcasecmp mb_strtolower mb_strtoupper

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