To append a value to a string variable:

Use the [String->Append] method. The following example shows a string variable named MyVariable that contains the words "The quick brown fox". The [String->Append] method is used to add the rest of the phrase and then the entire value of MyVariable is output, "The quick brown fox jumped over the lazy dog!".

Code

var('myvariable')='The quick brown fox '
$myvariable->append('jumped over the lazy dog!')
$myvariable

Result

The quick brown fox jumped over the lazy dog!