Update PHP Strings Exercise to Include Array Rejoining Task #802
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Modified the existing Strings exercise in tutorials/learn-php.org/en/Strings.md to include a new task. The updated exercise now requires users to rejoin the resulting array into a string with numbers separated by a colon (':'). This change aims to provide additional practice with PHP string manipulation and array handling functions.
Changes made:
This enhancement provides a more comprehensive exercise for learners, reinforcing key concepts of explode and implode in PHP.