| Manipulate numeric array values |
| Not yet rated by the users |
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| Keep track of site visitors in a MySQL database |
| Not yet rated by the users |
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| Generate an encrypted code that expires after time |
| Not yet rated by the users |
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| Determine the MIME type from a file name extension |
| Not yet rated by the users |
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| Validate IDs of China, Taiwan or Hong-Kong |
| Not yet rated by the users |
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| Manipulate GIF, JPEG and PNG images |
| Not yet rated by the users |
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 August 2010
Number 8 |
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| Compare two images to check if they are identical |
| There are not enough user ratings to display for this class. |
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| Validate email addresses, IP, dates and URLs |
| Not yet rated by the users |
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| Generate links to browse listings split in pages |
| There are not enough user ratings to display for this class. |
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| Generate a random text with a set of characters |
| Not yet rated by the users |
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 September 2010
Number 12 |
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| Generate a series of values that decrease smoothly |
| Not yet rated by the users |
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| Get statistics and beautify text strings |
| There are not enough user ratings to display for this class. |
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| Validate and process uploaded files |
| There are not enough user ratings to display for this class. |
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| Filter words from strings using regular expression |
| Not yet rated by the users |
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