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PHP | utf8_encode() Function

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  • Last Updated : 30 Sep, 2019
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The utf8_encode() function is an inbuilt function in PHP which is used to encode an ISO-8859-1 string to UTF-8. Unicode has been developed to describe all possible characters of all languages and includes a lot of symbols with one unique number for each symbol/character. UTF-8 has been used to transfer the Unicode character from one computer to another. It is not always possible to transfer a Unicode character to another computer reliably.


string utf8_encode( string $string )

Parameters: This function accepts single parameter $string which is required. It specifies the ISO-8859-1 string which need to be encoded.

Return Value: This function returns a string representing the encoded string on success or False on failure.

Note: This function is available for PHP 4.0.0 and newer version.

Example 1:

// String to encode
$string_to_encode = "\x63";
// Encoding string
echo utf8_encode($string_to_encode);



Example 2:

// Creating an array of 256 elements
$text = array(
    "\x20", "\x21", "\x22", "\x23", "\x24", "\x25",
    "\x26", "\x27", "\x28", "\x29", "\x2a", "\x2b",
    "\x2c", "\x2d", "\x2e", "\x2f", "\x30", "\x31"
    "\x32", "\x33", "\x34", "\x35", "\x36", "\x37"
// Encoding all characters
foreach( $text as $index ) {
    echo utf8_encode($index) . " "


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