str cut php

作者：城若幻影发布日期:2026-03-11 浏览:379

In PHP, the substr() function is used to extract a portion of a string. The function takes three parameters: the original string, the starting position, and the length of the desired substring.

Here is an example of how to use the substr() function to cut a string:

$str = "Hello, World!";
$cutStr = substr($str, 0, 5); // Extracts "Hello" from the original string
echo $cutStr; // Outputs "Hello"

In this example, the substr() function is used to extract the first 5 characters from the original string and store it in the $cutStr variable. The resulting substring is then echoed to the screen.

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