php - How to store url in database and generate unque id -

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i want create application using php , mysql.

assume making api call , getting list of urls. want store urls , each url should have 1 uniqe id( ie. number) can pass id page , can url db.

assume made api call got 5 urls keyword "xyz" , got following urls , respective titles

google.com/abc1.html title1 google.com/abc2.html title2 google.com/abc3.html title3 google.com/abc4.html title4

so want generate unique id of each url 

id1 google.com/abc1.html title1 id2 google.com/abc2.html title2 id3 google.com/abc3.html title3 id4 google.com/abc4.html title4

constraints url should unique

database can hold around 12lacs urls.

can please guide me how implement that? give optimization guide lines

thanks

12lacs = 1.2 million, right?

for can use regular unsigned integer auto increment;

create table urls (     id int unsigned not null auto_increment,     url varchar(255) not null unique,     title varchar(255) not null,     primary key(id) );

an unsigned integer can hold value 4 294 967 295.


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