<?php
$s = "acesta este un text";
$sir = "stiu PHP stiu HTML stiu CSS";
# afisez o sectiune din sir
echo substr( $sir, 0, 4), "\n"; // stiu echo substr( $sir, 5 ), "\n"; // PHP stiu HTML stiu CSS echo substr( $sir, 5, -3 ), "\n"; // PHP stiu HTML stiu echo substr( $sir, -3 ), "\n"; // CSS
# returnez doar un caracter din string
echo $sir{5}, "\n"; // P
echo $sir{ strlen($sir)-1 }, "\n"; // S
?>
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