This function returns at most len bytes from a BLOB that has been opened for reading by ibase_blob_open(). Returns FALSE on failure.
<?php
    $sql       = "SELECT blob_value FROM table";
    $result    = ibase_query( $sql );
    $data      = ibase_fetch_object( $result );
    $blob_data = ibase_blob_info( $data->BLOB_VALUE );
    $blob_hndl = ibase_blob_open( $data->BLOB_VALUE );
    print        ibase_blob_get( $blob_hndl, $blob_data[0] );
?> | 
Note: It is not possible to read from a BLOB that has been opened for writing by ibase_blob_create().
See also ibase_blob_open(), ibase_blob_close() and ibase_blob_echo().