PHP delete first and last element of array

1. array_shift() function

　Deletes the first element in the array and returns the value of the element. Returns null if the array is empty.
Example:

<code><span><?php</span><span>$test_arr</span> = <span>array</span> (
    <span>"name"</span> => <span>"jeanphorn"</span>,
    <span>"skill"</span> => <span>"programming"</span>,
    <span>"hobby"</span> => <span>"swimming"</span>,
);

<span>echo</span> array_shift(<span>$test_arr</span>). <span>"\n"</span>;                                                                                                                                                           
print_r(<span>$test_arr</span>);

<span>?></span></span></code>

Result:

jeanphorn
Array (
[skill] => programming
[hobby] => swimming )

---

Note: If the key name is numeric, all elements will get new key names, starting from 0 and increasing by 1

---

2. array_pop() function

​Delete the last element in the array. Returns null if the array is empty.
Example:

<code><span><?php</span><span>$test_arr</span> = <span>array</span> (
    <span>"name"</span> => <span>"jeanphorn"</span>,
    <span>"skill"</span> => <span>"programming"</span>,
    <span>"hobby"</span> => <span>"swimming"</span>,
);

<span>echo</span> array_pop(<span>$test_arr</span>). <span>"\n"</span>;                                                                                                                                                           
print_r(<span>$test_arr</span>);

<span>?></span></span></code>

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The above introduces PHP to delete the first element and the last element of an array, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.