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PHP FILTER_SANITIZE_ENCODED 过滤器
tryphp_func_sanitize_encoded2
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<!DOCTYPE html> <html> <body> <?php // Variable to check $url="https://www.freew3c��.com"; // Encode characters and remove all characters with ASCII value > 127 $url = filter_var($url, FILTER_SANITIZE_ENCODED, FILTER_FLAG_STRIP_HIGH); echo $url; ?> </body> </html>