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Introducing a function that can convert numbers into strings of specified length. Friends in need can refer to it.
Description: This function converts numbers into strings and specifies the length of the string. If the length is not long enough, add 0 on the left side. The code is as follows:
<?php
/**
* 数字转为字符串
* edit bbs.it-home.org
*/
function num2str($num,$length){
$num_str = (string)$num;
$num_strlength = count($num_str);
if ($length > $num_strlength) {
$num_str=str_pad($num_str,$length,"0",STR_PAD_LEFT);
}
return $num_str;
}
//调用示例
echo num2str(2,5);
?>Copy after login |
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