How to convert 01 to 1 in PHP

In PHP, you can use the substr() function to convert "01" into "1". This function can return a part of the string. When the parameter in the function is set to "1", it can be removed. The first character in the string, the syntax is "substr('01',1)".

The operating environment of this article: Windows 10 system, PHP version 7.1, Dell G3 computer.

How to convert 01 to 1 in php

The substr() function returns a part of the string.

Note: If the start parameter is negative and length is less than or equal to start, length is 0.

Syntax

substr(string,start,length)

Parameter Description

string Required. Specifies a part of the string to be returned.

start Required. Specifies where in the string to begin.

• Positive number - starts at the specified position in the string

• Negative number - starts at the specified position from the end of the string

• 0 - Start at the first character in the string

length optional. Specifies the length of the string to be returned. The default is until the end of the string.

• Positive number - Return from the position of the start parameter

• Negative number - Return from the end of the string

Return value: Returns the extracted part of the string, returns FALSE if it fails, or returns an empty string.

The example is as follows:

<?php
$keywords = &#39;01&#39;;
$keywords = substr($keywords,1);
echo $keywords; 
?>

The output result is "1".

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