Comparing Index Values
You can compare two index values by
using the compare
method.
$text->compare(index1
,op
,index2
);
You pass the first index, the test operation to perform, and the
second index. The values for op
are:
"<"
, "<="
,
"=="
, ">="
, and
"!="
. The function returns 1 if the test is true
and 0 if it isn’t. The following call returns 1 because the
index "1.0"
is less than "end"
:
$status = $text->compare("1.0", "<=", "end");
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