Executing an oracle .sql file with php - oracle

Question

I'm trying to execute a simple .sql file that resets my database. It works fine when I run it in sqlplus with #, but returns ORA-00922: missing or invalid option, when I run it using php like that:
$query = file_get_contents($path);
$stid = oci_parse($con, $query);
$r = oci_execute($stid);
Here is the .sql file itself, it's quite simple and I simply can't find anything that is wrong with the commands:
ALTER SESSION SET NLS_LANGUAGE = AMERICAN;
ALTER SESSION SET NLS_TERRITORY = AMERICA;
DROP TABLE users;
DROP TABLE friends;
DROP TABLE replies;
DROP TABLE tweets;
DROP TABLE retweets;
DROP TABLE mentions;
DROP TABLE hashtags;
CREATE TABLE users (
id_str VARCHAR2(20) NOT NULL PRIMARY KEY,
name VARCHAR2(40) NOT NULL,
screen_name VARCHAR2(20) NOT NULL,
followers NUMBER(9) NOT NULL,
friends NUMBER(9) NOT NULL
);
CREATE TABLE friends (
id1_str VARCHAR2(20) NOT NULL,
id2_str VARCHAR2(20) NOT NULL,
CONSTRAINT friendship PRIMARY KEY (id1_str, id2_str)
);
CREATE TABLE replies (
id1_str VARCHAR2(20) NOT NULL,
id2_str VARCHAR2(20) NOT NULL,
CONSTRAINT reply PRIMARY KEY (id1_str, id2_str)
);
CREATE TABLE tweets (
id_str VARCHAR2(20) NOT NULL PRIMARY KEY,
user_id_str VARCHAR2(20) NOT NULL,
created DATE NOT NULL
);
CREATE TABLE retweets (
user_id_str VARCHAR2(20) NOT NULL,
tweet_id_str VARCHAR2(20) NOT NULL,
CONSTRAINT retweet PRIMARY KEY (user_id_str, tweet_id_str)
);
CREATE TABLE hashtags (
tweet_id_str VARCHAR2(20) NOT NULL,
text VARCHAR2(140) NOT NULL,
CONSTRAINT hashtag PRIMARY KEY (tweet_id_str, text)
);
CREATE TABLE mentions (
user_id_str VARCHAR2(20) NOT NULL,
tweet_id_str VARCHAR2(20) NOT NULL,
CONSTRAINT mention PRIMARY KEY (user_id_str, tweet_id_str)
);
COMMIT;
I know it's probably silly, but I've spent hours looking for the solution to no avail and would appreciate any tips (even a different method than loading this file).

Answer 1

The problem is simple. Your file contains multiple commands, and oci_parse is meant to work with single statements.
You've got two options:
Read the file, parse it for semi-colons, and pass each resulting string (minus the semi-colon) to oci_parse/oci_execute, or
Change your file so it's a valid PL/SQL block, with BEGIN at the beginning and END; at the end, with each of the DDL statements you want to execute in an EXECUTE IMMEDIATE as shown below:
BEGIN
EXECUTE IMMEDIATE 'ALTER SESSION SET NLS_LANGUAGE = AMERICAN';
EXECUTE IMMEDIATE 'ALTER SESSION SET NLS_TERRITORY = AMERICA';
EXECUTE IMMEDIATE 'DROP TABLE users';
EXECUTE IMMEDIATE 'DROP TABLE friends';
EXECUTE IMMEDIATE 'DROP TABLE replies';
EXECUTE IMMEDIATE 'DROP TABLE tweets';
EXECUTE IMMEDIATE 'DROP TABLE retweets';
EXECUTE IMMEDIATE 'DROP TABLE mentions';
EXECUTE IMMEDIATE 'DROP TABLE hashtags';
EXECUTE IMMEDIATE 'CREATE TABLE users (
id_str VARCHAR2(20) NOT NULL PRIMARY KEY,
name VARCHAR2(40) NOT NULL,
screen_name VARCHAR2(20) NOT NULL,
followers NUMBER(9) NOT NULL,
friends NUMBER(9) NOT NULL
)';
EXECUTE IMMEDIATE 'CREATE TABLE friends (
id1_str VARCHAR2(20) NOT NULL,
id2_str VARCHAR2(20) NOT NULL,
CONSTRAINT friendship PRIMARY KEY (id1_str, id2_str)
)';
EXECUTE IMMEDIATE 'CREATE TABLE replies (
id1_str VARCHAR2(20) NOT NULL,
id2_str VARCHAR2(20) NOT NULL,
CONSTRAINT reply PRIMARY KEY (id1_str, id2_str)
)';
EXECUTE IMMEDIATE 'CREATE TABLE tweets (
id_str VARCHAR2(20) NOT NULL PRIMARY KEY,
user_id_str VARCHAR2(20) NOT NULL,
created DATE NOT NULL
)';
EXECUTE IMMEDIATE 'CREATE TABLE retweets (
user_id_str VARCHAR2(20) NOT NULL,
tweet_id_str VARCHAR2(20) NOT NULL,
CONSTRAINT retweet PRIMARY KEY (user_id_str, tweet_id_str)
)';
EXECUTE IMMEDIATE 'CREATE TABLE hashtags (
tweet_id_str VARCHAR2(20) NOT NULL,
text VARCHAR2(140) NOT NULL,
CONSTRAINT hashtag PRIMARY KEY (tweet_id_str, text)
)';
EXECUTE IMMEDIATE 'CREATE TABLE mentions (
user_id_str VARCHAR2(20) NOT NULL,
tweet_id_str VARCHAR2(20) NOT NULL,
CONSTRAINT mention PRIMARY KEY (user_id_str, tweet_id_str)
)';
END;