讨论数量:
<?php
$fruits = array("lemon", "orange", "banana", "apple");
sort($fruits);
foreach ($fruits as $key => $val) {
echo "fruits[" . $key . "] = " . $val . "\n";
}
// fruits[0] = apple
// fruits[1] = banana
// fruits[2] = lemon
// fruits[3] = orange
?>
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