Examples of PHP mb_encode_numericentity() Function
Example 1: The following program demonstrates the mb_decode_numercentity() function.
PHP
<?php $text = "I ♥ PHP!" ; // Encode special characters as HTML entities $encodedText = mb_encode_numericentity( $text , [0x80, 0xffff, 0, 0xffff], 'UTF-8' ); echo $encodedText ; ?> |
Output
I ♥ PHP!
Example 2: The following program demonstrates the mb_decode_numercentity() function.
PHP
<?php $text = "Hello, <b>World</b>" ; // Array of tags to check for $tagsToEncode = [ '<b>' , '<strong>' , '<i>' , '<em>' ]; // Encode special characters as HTML entities // if the string contains any specified tags foreach ( $tagsToEncode as $tag ) { if ( strpos ( $text , $tag ) !== false) { $encodedText = mb_encode_numericentity( $text , [0x80, 0xffff, 0, 0xffff], 'UTF-8' ); break ; } else { $encodedText = $text ; } } echo $encodedText ; ?> |
Output
Hello, <b>World</b>
Example 3: The following program demonstrates the mb_decode_numercentity() function.
PHP
<?php $userContent = "<p>This is a <strong>test</strong> article with some entities.</p>" ; // Function to decode HTML entities function decodeUserContent( $content ) { return mb_decode_numericentity( $content , array (0x0, 0x10FFFF, 0, 'UTF-8' )); } // Display the user-submitted content safely echo decodeUserContent( $userContent ); ?> |
Output
<p>This is a <strong>test</strong> article with some entities.</p>
Reference: https://www.php.net/manual/en/function.mb-encode-numericentity.php
PHP mb_encode_numericentity() Function
The mb_encode_numercentity() function is an inbuilt function in PHP that is used to encode HTML entities with numerical values encoded using either decimal or hexadecimal representation.
Syntax:
string mb_encode_numericentity(
string $string,
array $map,
string $encoding,
bool $hex
)
Parameters: This function accepts four parameters that are described below.
- $string: The input string to encode.
- $map: An array that sets the range of Unicode characters to encode. The array is of the form array (start, end, offset, mask).
- $encoding: The character encoding of the input and output strings.
- $hex: An array that sets the range of Unicode characters to encode. The array is of the form array (start, end, offset, mask).
Return Values: The mb_encode_numericentity() function returns the encoded string, or “false” if an error occurs.
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