All numerical array keys will be modified to start counting from zero while literal keys won’t be touched. C print char array as binary options array_shift over larger array was fairly slow. It sped up as the array shrank, most likely as it has to reindex a smaller data set.
It also requires sequential numeric keys. Just a useful version which returns a simple array with the first key and value. Here is a little function if you would like to get the top element and rotate the array afterwards. Note that this only works on enumerated arrays. This may seem like very unexpected behaviour. Sometimes instead of shuffling array you just need to rotate it. Here’s a utility function to parse command line arguments.
I think this is more efficient. I needed to remove the first set of keys and values from an associative array. Im using this function to browse arrays from database. If you need the first or last entry of an array, then this could help you. As you can see, if you have to handle arrays with non-continuous indexes, these functions may be very helpful.
I haven’t really read into it, but if you’re complaining about a change in PHP 5. Then you’re not using this function correctly. This function’s argument is supposed to be a pointer to a variable. It then modifies that variable and returns a value. When you specify a function, php CAN NOT modify the return value of that function.
It should be common sense but apparently its not. Unless of course for some reason you need to save the microseconds this takes. Assignment in line, does not remove the element. This doesn’t work with a 2 dimensional array. If the array has non-numerical keys, array_shift extracts the first element, whichever is the key, and recompute the numerical keys, if there are any. It means that array_shift works with associative arrays too, and leaves the keys unchanged if they are non-numerical. If the last two examples above seem odd, see String conversion to numbers.
To force a variable to be evaluated as a certain type, see the section on Type casting. See the section titled String access by character for more information. It may not be obvious exactly what will happen when casting between certain types. Casting objects to arrays is a pain.
Yes, that looks like an array with two keys with the same name and it looks like the protected field was prepended with an asterisk. 0′ so be careful when playing around with this. The object casting methods presented here do not take into account the class hierarchy of the class you’re trying to cast your object into. Convert an object to a specific class. Type casting from string to int and vice versa is probably the most common conversation. Checking for strings to be integers? How about if a string is a float?