Add st, nd, rd, th to a Number with PHP

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This simple function will add st, nd, rd or th to a cardinal number (the suffix acts as an ordinal indicator). There are plenty of these functions floating around but only a few take the subtle variances into consideration that can screw up the result.

If you’re using PHP 5 >= 5.3.0 and you have PECL intl >= 1.0.0 installed, consider PHP’s class.numberformatter .

The PHP Function


To append the appropriate suffix to the ordinal number, use the following:

The resulting cardinal number will print as 14th.

If you would like to test the code, use the following loop that’ll print the 1st through to the 99th.