php json_encode()
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$b = array();
echo "Empty array output as array: ", json_encode($b), "\n";echo "Empty array output as object: ", json_encode($b, JSON_FORCE_OBJECT), "\n\n";
$c = array(array(1,2,3));
echo "Non-associative array output as array: ", json_encode($c), "\n";
echo "Non-associative array output as object: ", json_encode($c, JSON_FORCE_OBJECT), "\n\n";
$d = array('foo' => 'bar', 'baz' => 'long');
echo "Associative array always output as object: ", json_encode($d), "\n";
echo "Associative array always output as object: ", json_encode($d, JSON_FORCE_OBJECT), "\n\n";
Empty array output as array: []Empty array output as object: {}Non-associative array output as array: [[1,2,3]]Non-associative array output as object: {"0":{"0":1,"1":2,"2":3}}Associative array always output as object: {"foo":"bar","baz":"long"}Associative array always output as object: {"foo":"bar","baz":"long"}
$a = array('<foo>',"'bar'",'"baz"','&blong&', "\xc3\xa9");
echo "Normal: ", json_encode($a), "\n";
echo "Tags: ", json_encode($a, JSON_HEX_TAG), "\n";
echo "Apos: ", json_encode($a, JSON_HEX_APOS), "\n";
echo "Quot: ", json_encode($a, JSON_HEX_QUOT), "\n";
echo "Amp: ", json_encode($a, JSON_HEX_AMP), "\n";
echo "Unicode: ", json_encode($a, JSON_UNESCAPED_UNICODE), "\n";
echo "All: ", json_encode($a, JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_AMP | JSON_UNESCAPED_UNICODE), "\n\n";
Normal: ["<foo>","'bar'","\"baz\"","&blong&","\u00e9"]Tags: ["\u003Cfoo\u003E","'bar'","\"baz\"","&blong&","\u00e9"]Apos: ["<foo>","\u0027bar\u0027","\"baz\"","&blong&","\u00e9"]Quot: ["<foo>","'bar'","\u0022baz\u0022","&blong&","\u00e9"]Amp: ["<foo>","'bar'","\"baz\"","\u0026blong\u0026","\u00e9"]Unicode: ["<foo>","'bar'","\"baz\"","&blong&","é"]All: ["\u003Cfoo\u003E","\u0027bar\u0027","\u0022baz\u0022","\u0026blong\u0026","é"]
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