如何在PHP中获取变量内容的大小 [英] How to get the size of the content of a variable in PHP

问题描述

如果我在PHP中具有以下变量:

If I have the following variable in PHP:

$Message='Hello, this is just test message';

如何获取其内容的大小(以字节为单位)?例如，要打印以下内容:

How can I get the size of its content in bytes? For instance, to print something like:

<p>Message size is 20KB</p>

推荐答案

$start_memory = memory_get_usage();
$foo = "Some variable";
echo memory_get_usage() - $start_memory;

如果您正在使用任何类型的var，这很好.

This is good if you are working with any type of var.

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