A PHP String class code_PHP tutorial

Usage:

Copy code The code is as follows:

$s ='China';
$os = new String( $s );
echo $os->decode('gbk') ,'';
echo $os->decode('gbk')->encode( 'md5'),'';

Code

Copy code The code is as follows:

class String extends stdClass
{
private $_val ='';
public function __construct( $str ='' )
{
$this->_val = $str;
}
public function __toString()
{
return $this->_val;
}
public function encode( $coder )
{
$coder ='encode_' . $coder;
if( method_exists( $this, $coder ) )
{
return $this->$coder();
}else{
return $this;
}
}
public function decode( $coder )
{
$coder ='decode_' . $coder;
if( method_exists( $ this, $coder ) )
{
return $this->$coder();
}else{
return $this;
}
}
private function encode_md5()
{
return new String( md5( $this->_val ) );
}
private function decode_gbk()
{
return new String( iconv( 'GBK','UTF-8', $this->_val ) );
}
}

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