Runtime Configuration
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OCI8
PHP Manual

# Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

OCI8 Function and Method Modes
Constant | Description
--- | ---
`OCI_ASSOC` | Used with oci_fetch_all() and oci_fetch_array() to get results as an associative array.
`OCI_BOTH` | Used with oci_fetch_all() and oci_fetch_array() to get results as an array with both associative and number indices.
`OCI_COMMIT_ON_SUCCESS` | Statement execution mode for oci_execute() call. Automatically commit changes when the statement has succeeded.
`OCI_CRED_EXT` | Used with oci_connect() for using Oracles' External or OS authentication. Introduced in PHP 5.3 and PECL OCI8 1.3.4.
`OCI_DEFAULT` | See `OCI_NO_AUTO_COMMIT`.
`OCI_DESCRIBE_ONLY` | Statement execution mode for oci_execute(). Use this mode if you want meta data such as the column names but don't want to fetch rows from the query.
`OCI_EXACT_FETCH` | Obsolete. Statement fetch mode. Used when the application knows in advance exactly how many rows it will be fetching. This mode turns prefetching off for Oracle release 8 or later mode. The cursor is canceled after the desired rows are fetched which may result in reduced server-side resource usage.
`OCI_FETCHSTATEMENT_BY_COLUMN` | Default mode of oci_fetch_all().
`OCI_FETCHSTATEMENT_BY_ROW` | Alternative mode of oci_fetch_all().
`OCI_LOB_BUFFER_FREE` | Used with OCI-Lob::flush to free buffers used.
`OCI_NO_AUTO_COMMIT` | Statement execution mode for oci_execute(). The transaction is not automatically committed when using this mode. For readability in new code, use this value instead of the older, equivalent `OCI_DEFAULT` constant. Introduced in PHP 5.3.2 (PECL OCI8 1.4).
`OCI_NUM` | Used with oci_fetch_all() and oci_fetch_array() to get results as an enumerated array.
`OCI_RETURN_LOBS` | Used with oci_fetch_array() to get the data value of the LOB instead of the descriptor.
`OCI_RETURN_NULLS` | Used with oci_fetch_array() to get empty array elements if the row items value is `NULL`.
`OCI_SEEK_CUR` | Used with OCI-Lob::seek to set the seek position.
`OCI_SEEK_END` | Used with OCI-Lob::seek to set the seek position.
`OCI_SEEK_SET` | Used with OCI-Lob::seek to set the seek position.
`OCI_SYSDATE` | Obsolete.
`OCI_SYSDBA` | Used with oci_connect() to connect with the SYSDBA privilege. The php.ini setting oci8.privileged_connect should be enabled to use this.
`OCI_SYSOPER` | Used with oci_connect() to connect with the SYSOPER privilege. The php.ini setting oci8.privileged_connect should be enabled to use this.
`OCI_TEMP_BLOB` | Used with OCI-Lob::writeTemporary to indicate that a temporary BLOB should be created.
`OCI_TEMP_CLOB` | Used with OCI-Lob::writeTemporary to indicate that a temporary CLOB should be created.

OCI8 Bind and Define Types
Constant | Description
--- | ---
`OCI_B_BFILE` | Used with oci_bind_by_name() when binding BFILEs.
`OCI_B_BIN` | Used with oci_bind_by_name() to bind RAW values.
`OCI_B_BLOB` | Used with oci_bind_by_name() when binding BLOBs.
`OCI_B_CFILEE` | Used with oci_bind_by_name() when binding CFILEs.
`OCI_B_CLOB` | Used with oci_bind_by_name() when binding CLOBs.
`OCI_B_CURSOR` | Used with oci_bind_by_name() when binding cursors, previously allocated with oci_new_descriptor().
`OCI_B_INT` | Used with oci_bind_array_by_name() to bind arrays of INTEGER.
`OCI_B_NTY` | Used with oci_bind_by_name() when binding named data types. Note: in PHP < 5.0 it was called `OCI_B_SQLT_NTY`.
`OCI_B_NUM` | Used with oci_bind_array_by_name() to bind arrays of NUMBER.
`OCI_B_ROWID` | Used with oci_bind_by_name() when binding ROWIDs.
`SQLT_AFC` | Used with oci_bind_array_by_name() to bind arrays of CHAR.
`SQLT_AVC` | Used with oci_bind_array_by_name() to bind arrays of VARCHAR2.
`SQLT_BDOUBLE` | Not supported.
`SQLT_BFILEE` | The same as `OCI_B_BFILE`.
`SQLT_BFLOAT` | Not supported.
`SQLT_BIN` | The same as `OCI_B_BIN`.
`SQLT_BLOB` | The same as `OCI_B_BLOB`.
`SQLT_CFILEE` | The same as `OCI_B_CFILEE`.
`SQLT_CHR` | Used with oci_bind_array_by_name() to bind arrays of VARCHAR2. Also used with oci_bind_by_name().
`SQLT_CLOB` | The same as `OCI_B_CLOB`.
`SQLT_FLT` | Used with oci_bind_array_by_name() to bind arrays of FLOAT.
`SQLT_INT` | The same as `OCI_B_INT`.
`SQLT_LBI` | Used with oci_bind_by_name() to bind LONG RAW values.
`SQLT_LNG` | Used with oci_bind_by_name() to bind LONG values.
`SQLT_LVC` | Used with oci_bind_array_by_name() to bind arrays of LONG VARCHAR.
`SQLT_NTY` | The same as `OCI_B_NTY`.
`SQLT_NUM` | The same as `OCI_B_NUM`.
`SQLT_ODT` | Used with oci_bind_array_by_name() to bind arrays of LONG.
`SQLT_RDD` | The same as `OCI_B_ROWID`.
`SQLT_RSET` | The same as `OCI_B_CURSOR`.
`SQLT_STR` | Used with oci_bind_array_by_name() to bind arrays of STRING.
`SQLT_UIN` | Not supported.
`SQLT_VCS` | Used with oci_bind_array_by_name() to bind arrays of VARCHAR.

OCI8 Descriptor Types
Constant | Description
--- | ---
`OCI_DTYPE_FILE` | This flag tells oci_new_descriptor() to initialize a new FILE descriptor.
`OCI_DTYPE_LOB` | This flag tells oci_new_descriptor() to initialize a new LOB descriptor.
`OCI_DTYPE_ROWID` | This flag tells oci_new_descriptor() to initialize a new ROWID descriptor.
`OCI_D_FILE` | The same as `OCI_DTYPE_FILE`.
`OCI_D_LOB` | The same as `OCI_DTYPE_LOB`.
`OCI_D_ROWID` | The same as `OCI_DTYPE_ROWID`.

Runtime Configuration
Examples
OCI8
PHP Manual