- json_encode: documentation ( source)
<?php
echo json_encode("É", JSON_UNESCAPED_SLASHES);
echo "\n";
echo json_encode("\u00c9", JSON_UNESCAPED_SLASHES);
echo "\n";
echo json_encode("\xc3\x89", JSON_UNESCAPED_SLASHES);
echo "\n";
echo json_encode("/");
echo "\n";
echo json_encode("/", JSON_UNESCAPED_SLASHES);
echo "\n";
echo json_encode("\\", JSON_UNESCAPED_SLASHES);