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PHP 更新数组项
tryphp_arrays_update_error
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<!DOCTYPE html> <html> <body> <pre> <?php $cars = array("Volvo", "BMW", "Toyota"); foreach ($cars as &$x) { $x = "Ford"; } $x = "ice cream"; var_dump($cars); ?> </pre> </body> </html>
array(3) { [0]=> string(4) "Ford" [1]=> string(4) "Ford" [2]=> &string(9) "ice cream" }