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How to remove the first digits of a string in php
- 王林Original
- 2020-11-02 10:20:303671browse
php method to remove the first digits of a string: You can use the substr() function, such as [substr("Hello world",10)]. The substr() function can return the extracted part of the string, return false if it fails, or return an empty string.
The substr() function can return the extracted part of the string, return FALSE if it fails, or return an empty string.
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Syntax:
substr(string,start,length)
If the start parameter is a negative number and length is less than or equal to start, then length is 0.
Example:
<?php
echo substr("Hello world",10)."<br>";
echo substr("Hello world",1)."<br>";
echo substr("Hello world",3)."<br>";
echo substr("Hello world",7)."<br>";
echo substr("Hello world",-1)."<br>";
echo substr("Hello world",-10)."<br>";
echo substr("Hello world",-8)."<br>";
echo substr("Hello world",-4)."<br>";
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