7.9. Opt_Xml_Buffer class 7.9.2. addBefore(): 7.9.1. addAfter()
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7.9.2. addBefore()

Status	public
Reference	`void addBefore(int $buffer, string $code)`

Adds the code snippet $code to the beginning of the buffer $buffer.

class Opt_Processor_Foo extends Opt_Compiler_Processor
{
    protected $_name = 'foo';
 
    public function processNode(Opt_Xml_Node $node)
    {
        $node->addBefore(Opt_Xml_Buffer::TAG_BEFORE, 'echo \'hello\';');
    } // end processNode();
} // end Opt_Processor_Foo;

See the description of Opt_Xml_Buffer::addAfter() to get to know more information about this method.

See also:

7.9.1. Opt_Xml_Buffer::addAfter()

7.9.2. addBefore() 7.9. Opt_Xml_Buffer class: « Previous
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7.9.3. bufferSize()