How to remove 0 from php 01

php 01 Method to remove 0: 1. Use the "intval($sn);" method to remove the 0 in front of the string; 2. Use the "ltrim($sn,"0");" method to remove characters The 0 in front of the string.

The operating environment of this article: Windows7 system, PHP7.1 version, DELL G3 computer

How to remove 0 from php 01?

Remove leading zeros

intval() gets the integer value of the variable.

ltrim() function removes whitespace characters or other predefined characters on the left side of a string.

$sn = 01;
$id1 = intval($sn); //方法一 1
$id2 = ltrim($sn,"0"); //方法二 1

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