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Converting all applicable characters to HTML entities

In this code sample we will converting all applicable characters to HTML entities using htmlentities(). Using 'htmlentities' all characters which have HTML character entity equivalents are translated into these entities.


Syntax

string htmlentities ( string string [, int quote_style [, string charset]] )

Example :

<?php

$strMessag = "You're my best friend.";

echo htmlentities($strMessage, ENT_COMPAT);

echo htmlentities($strMessage, ENT_QUOTES);

echo htmlentities($strMessage, ENT_NOQUOTES);

?>

Available quote_style constants :
ENT_COMPAT : Will convert double-quotes and leave single-quotes alone.
ENT_QUOTES : Will convert both double and single quotes.
ENT_NOQUOTES : Will leave both double and single quotes unconverted.

Supported charsets :
ISO-8859-1    ISO8859-1     Western European, Latin-1
ISO-8859-15    ISO8859-15    Western European, Latin-9. Adds the Euro sign, French and Finnish letters missing in Latin-1(ISO-8859-1).
UTF-8         ASCII compatible multi-byte 8-bit Unicode.
cp866    ibm866, 866    DOS-specific Cyrillic charset. This charset is supported in 4.3.2.
cp1251    Windows-1251, win-1251, 1251    Windows-specific Cyrillic charset. This charset is supported in 4.3.2.
cp1252    Windows-1252, 1252    Windows specific charset for Western European.
KOI8-R    koi8-ru, koi8r    Russian. This charset is supported in 4.3.2.
BIG5    950    Traditional Chinese, mainly used in Taiwan.
GB2312    936    Simplified Chinese, national standard character set.
BIG5-HKSCS         Big5 with Hong Kong extensions, Traditional Chinese.
Shift_JIS    SJIS, 932    Japanese
EUC-JP    EUCJP    Japanese