How to add, delete, check and modify PHP array

First we need to write an array using our sublime.

Let’s use dump to see the effect.

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Let’s take a look at how to add one Data, the first thing we need to do is use $a['d']=4;.

Then let’s look at how to modify the data. We can directly use $a['b']=5 to modify it.

Then let’s look at how to delete elements in the array, use unset($a['d']); delete.

The last step is how to search. To search, we directly use echo and key-value pairs to search directly.

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