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Detailed introduction to the usage of str_pad() function in php

黄舟
Release: 2023-03-07 07:08:02
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This article mainly introduces the usage of str_pad() function in php, and provides a more detailed analysis of the functions and parameters of the str_pad() function in php For the meaning and specific usage, friends in need can refer to

This article explains the usage of the str_pad() function in PHP with examples. Share it with everyone for your reference, the details are as follows:

str_pad() Function fills the string with the new length .

Syntax:

##str_pad(string<a href="http://www.php.cn/wiki/57.html" target="_blank">,ength,pad_string,pad_type);</a>

parameter list:

Parameters Description
string Required. Specifies the string to be filled.
length Required. Specifies the new string length. If the value is less than the original length of the string, no operation is performed.
pad_string Optional. Specifies the string used for padding. The default is blank.
pad_type Optional. Specifies which side of the string to fill. Possible values: STR_PAD_BOTH - Pad both sides of the string. If it's not an even number, the right side gets extra padding. STR_PAD_LEFT - pad the left side of the string. STR_PAD_RIGHT - Pad the right side of the string. default.


For example:

class test{
 private $var;
 public function construct($var){
 $this->var=$var;
 }
 public function test(){
 $result=str_pad($this->var,30,"*");
 return $result;
 }
}
$T=new test("hello");
$result=$T->test();
echo $result;
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output:

hello*************************
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