What does php count string return?

php count string returns "1". Reason: count() is an array method that can return the number of elements in the array; when calculating "count(string)", the string will first be converted into an array with only 1 element, and then the number of elements in the array will be counted. and returns, thus returning the value "1".

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

What does the php count string return?

Let’s take a look through the code:

<?php
$str="hello";
echo count($str);
?>

The operation result is 1, so the count string returns the value "1".

Cause: Automatic type conversion occurred

count() is an array method that returns the number of elements in the array.

When using the count() function to calculate the length of a string, the system will automatically convert the string into an array with only 1 element array("hello"), and then perform the calculation.

//等价于
echo count(array("hello"));

Thus count(string) will return the value 1.

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