Description:
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When using pg_prepare(string $stmtname, string $query) with a very long $stmtname, the $stmtname will be silently truncated. It would be nice if PHP emitted an E_NOTICE, as postgresql itself does:

psql=> PREPARE abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz as SELECT NOW();
NOTICE:  identifier "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz" will be truncated to "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijk"
PREPARE

Note that it is a sane idea to try to use the query itself as $stmtname (less bookkeeping), which naturally leads to trying large $stmtname's.

Reproduce code:
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pg_connect(...);

pg_prepare("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz 1", "SELECT 1");
pg_prepare("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz 2", "SELECT 2");

Expected result:
----------------
An E_NOTICE because the name was truncated.

Actual result:
--------------
No E_NOTICE.

pg_prepare() [function.pg-prepare]: Query failed: ERROR:  prepared statement "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz 2" already exists