String str_pad function

str_pad ( $input_string, $length, $pad_string, pad_type)
ParameterDESCRIPTION
$input_stringRequired : Input string
$lengthRequired : If $length is less than , zero or equal to length of Input string then no padding takes place and $input_string is returned
$pad_stringOptional : To be used as padding. If not given blank space is used. Padding is done upto the limit.
pad_typeOptinoal: Which side padding is to be added
STR_PAD_RIGHT ( default )
STR_PAD_LEFT
STR_PAD_BOTH
Using the string function str_pad we can pad one input string upto some given length or pad using another string. If no second string is given then the input string is padded by blank space. We can even specify which side of the string the padding is to be done. Let us first see the syntax of str_pad function Let us try some examples
echo str_pad("plus2net.com",15,"*");//output:  plus2net.com***

echo str_pad("plus2net.com",15,"*",STR_PAD_LEFT);//output:   ***plus2net.com

echo str_pad("plus2net.com",15,"*",STR_PAD_BOTH);//output:  *plus2net.com**
This function is useful when some data is to be formatted upto some length. We want the blank space after the input is to be blanked or marked with some chars like ---- . Another example is where we are displaying data in rows and wants all records to perfectly align in left and right. Here if all data are not of equal length we can pad them and keep all in one line. The extra space can be formatted as per requirement.

Here is another example of str_pad function

Welcome--------
to-------------
Plus2net.com---
ASP------------
Section--------
to-------------
learn----------
web------------
programing-----

The code for the above is here


$str="Welcome to Plus2net.com ASP Section to learn web programing";
$ar=explode(" ",$str);
while (list ($key, $val) = each ($ar)) {
echo str_pad($val,15,"-",STR_PAD_RIGHT);
echo "<br>";
}



Your Rating





PHP String Functions

Post your comments , suggestion , error , requirements etc here .




We use cookies to improve your browsing experience. . Learn more
HTML MySQL PHP JavaScript ASP Photoshop Articles FORUM . Contact us
©2000-2019 plus2net.com All rights reserved worldwide Privacy Policy Disclaimer