How to Split CamelCase Words with preg_match in PHP?

Splitting CamelCase Words with preg_match in PHP

To dissect camelCase words into their component parts using preg_match, a different approach is required than the one you initially employed. Here's how to achieve the desired result:

Updated Regular Expression:

<code class="php">$pattern = '/(?=[A-Z])/';</code>

Using preg_split:

Utilize the preg_split function, which splits a string based on a pattern, as follows:

<code class="php">$arr = preg_split($pattern, $str);</code>

Explanation:

The regular expression (?=[A-Z]) identifies every position immediately preceding an uppercase letter. By doing this, we effectively establish split points within the camelCase word.

Example:

Suppose you have the camelCase word "oneTwoThreeFour" stored in a variable named $str. Running the above code will yield the following result:

<code class="php">print_r($arr); // Output: Array ( [0] => one [1] => Two [2] => Three [3] => Four )</code>

This accurately separates the word into its intended components.

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