Connection Handling
OCI8 Functions
OCI8
PHP Manual

# Supported Datatypes

The driver supports the following types when binding parameters using oci_bind_by_name() function:
Type | Mapping
--- | ---
`SQLT_NTY` | Maps a native collection type from a PHP collection object, such as those created by oci_new_collection().
`SQLT_BFILEE` | Maps a native descriptor, such as those created by oci_new_descriptor().
`SQLT_CFILEE` | Maps a native descriptor, such as those created by oci_new_descriptor().
`SQLT_CLOB` | Maps a native descriptor, such as those created by oci_new_descriptor().
`SQLT_BLOB` | Maps a native descriptor, such as those created by oci_new_descriptor().
`SQLT_RDD` | Maps a native descriptor, such as those created by oci_new_descriptor().
`SQLT_NUM` | Converts the PHP parameter to a 'C' long type, and binds to that value.
`SQLT_RSET` | Maps a native statement handle, such as those created by oci_parse() or those retrieved from other OCI queries.
`SQLT_CHR` and any other type | Converts the PHP parameter to a string type and binds as a string.

The following types are supported when retrieving columns from a result set:
Type | Mapping
--- | ---
`SQLT_RSET` | Creates an oci statement resource to represent the cursor.
`SQLT_RDD` | Creates a ROWID object.
`SQLT_BLOB` | Creates a LOB object.
`SQLT_CLOB` | Creates a LOB object.
`SQLT_BFILE` | Creates a LOB object.
`SQLT_LNG` | Bound as SQLT_CHR, returned as a string
`SQLT_LBI` | Bound as `SQLT_BIN`, returned as a string
Any other type | Bound as `SQLT_CHR`, returned as a string

Connection Handling
OCI8 Functions
OCI8
PHP Manual