In PHP, how do I index strings with built-in functions?

In PHP, you can index strings using various built-in functions such as substr(), strpos(), and more.

<?php $string = "Hello, world!"; echo "String: " . $string . "<br>"; // Get the character at index 7 $charAtIndex = substr($string, 7, 1); echo "Character at index 7: " . $charAtIndex . "<br>"; // Find the position of 'world' $position = strpos($string, 'world'); echo "'world' starts at index: " . $position . "<br>"; ?>
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PHP string indexing substr function strpos function string operations

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