Timeline for Type casting variables in PHP, what is the practical reason for doing this?
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
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| Dec 7, 2010 at 17:15 | comment | added | Stephen | Aha! You may have hit a valid reason with Parameterized Queries. | |
| Dec 7, 2010 at 16:26 | comment | added | Alan Pearce | I actually agree. As I was typing them up, I thought that I would think of some uses, but I didn't. For the database stuff, if the parameters are part of the query string, then you're right, casting has no purpose. However, when using parametrised queries (which is always a good idea), it is possible to specify the parameters' types. | |
| Dec 7, 2010 at 15:30 | comment | added | Stephen |
These are great examples of how type casting works. Yet, I'm not convinced that they fill a need. Yes, you can convert an object to an array, but why? I guess because you could then use the myriad PHP array functions on the new array, but I cannot fathom how that would be useful. Also, PHP usually creates string queries to send to a MySQL database, so the variable type is irrelevant (automatic string conversion from int or float will occur when building the query). (array) $item is neat, but useful?
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| Dec 7, 2010 at 14:45 | history | answered | Alan Pearce | CC BY-SA 2.5 |