truncate string php code example

Example 1: substr() php

<?php
echo substr('abcdef', 1);     // bcdef
echo substr('abcdef', 1, 3);  // bcd
echo substr('abcdef', 0, 4);  // abcd
echo substr('abcdef', 0, 8);  // abcdef
echo substr('abcdef', -1, 1); // f

// Accessing single characters in a string
// can also be achieved using "square brackets"
$string = 'abcdef';
echo $string[0];                 // a
echo $string[3];                 // d
echo $string[strlen($string)-1]; // f

?>

//substr() function returns certain bits of a string

Example 2: take 10 character from string using php

$return_string = substr("Hi i am returning first 10 characters.", 0, 10);
Output:
"Hi i am re"

Example 3: php trim string to length

<?php
echo substr('abcdef', 1);     // bcdef
echo substr('abcdef', 1, 3);  // bcd
echo substr('abcdef', 0, 4);  // abcd
echo substr('abcdef', 0, 8);  // abcdef
echo substr('abcdef', -1, 1); // f

// Accessing single characters in a string
// can also be achieved using "square brackets"
$string = 'abcdef';

Example 4: only display part of string php

substr('abcdef', 1);     // bcdef
substr('abcdef', 1, 3);  // bcd
substr('abcdef', 0, 8);  // abcdef
substr('abcdef', -1, 1); // f

Example 5: print only some characters of a string in php

substr(string,start,length)

Example 6: php substring last 4 characters to censure credit card

$censured_data = '** ** ** ' . substr($row['credit_card_number_from_db'], -4);