Created by Nikul Shah

STRING FUNCTIONS

NIKUL SHAH 1

STRLEN()

• <?php

• echo strlen("Hello Nikul!");

• ?>

• /*output */

• 12

NIKUL SHAH 2

STR_WORD_COUNT()

• <?php

• echo str_word_count("Some people tend to forget that kindness and manners are free.");

• ?>

NIKUL SHAH 3

STRREV()

• <?php

• echo strrev("don't loss your hope.");

• ?>

NIKUL SHAH 4

STRPOS()

• strpos() function searches for a specific text within a string.

• If a match is found, the function returns the character position of the first match. If no

match is found, it will return FALSE.

• <?php

• echo strpos("Destiny works.", "works");

• ?>

NIKUL SHAH 5

STR_REPLACE ------ STRTR

• $search = array('A', 'B', 'C', 'D', 'E');

• $replace = array('B', 'C', 'D', 'E', 'F');

• $subject = 'A';

• $trans = array('A' => 'B','B'=>'C','C'=>'D','D'=>'E','E'=>'F');

• echo str_replace($search, $replace, $subject);

• echo "<br/>";

• echo strtr($subject,$trans);

NIKUL SHAH 6

• <?php

• echo str_replace("Nikul","Shah","Nik shah");

• ?>

NIKUL SHAH 7

ADDSLASHES()

• <?php

• $str=addslashes("today is 'monday'");

• echo "$str";

• ?>

• //output

• today is \'monday\'

NIKUL SHAH 8

ADDCSLASHES()

• <?php

• $str=addcslashes("Nikul","k");

• echo "$str";

• ?>

• Be careful using addcslashes() on 0 (NULL), r (carriage return), n (newline), f (form feed),

t (tab) and v (vertical tab). In PHP, \0, \r, \n, \t, \f and \v are predefined escape sequences.

NIKUL SHAH 9

CHR()

• The chr() function returns a character from the specified ASCII value.

• The ASCII value can be specified in decimal, octal, or hex values. Octal values are

defined by a leading 0, while hex values are defined by a leading 0x.

• <?php

$str = chr(43);

$str2 = chr(61);

echo("2 $str 2 $str2 4");

?>

NIKUL SHAH 10

EXPLODE()

• The explode() function breaks a string into an array.

• Note: The "separator" parameter cannot be an empty string.

• <?php

• $str="Hello my name is 'Nikul'";

• print_r (explode(" ",$str));

• print_r(explode(',',$str,0));

• ?>

• Using limits parameter it will returns no of elements.

• This function can not run on echo.

NIKUL SHAH 11

IMPLODE()

• implode() function returns a string from the elements of an array

• <?php

• $str =array('Hello','Nikul','How','are','You?');

• print_r(implode(",",$str));

• ?>.

NIKUL SHAH 12

JOIN()

• Joins array into string. Same as implode()

• <?php

• $im=array("nikul","Shah");

• echo (join(" ",$im));

• ?>

NIKUL SHAH 13

MD5()

• This function Calculates the MD5 hash of a string.

• <?php

• $im=array("nikul","Shah");

• echo md5(join(" ",$im));

• ?>

• 4994812ba7d125a30e2b9c04e7b7c014

NIKUL SHAH 14

NL2BR()

• Inserts HTML line breaks in front of each newline in a string

• <?php

• $n="Nikul \nShah";

• echo nl2br($n);

• ?>

NIKUL SHAH 15

STR_SPLIT()

• This funciton splits string into an array.

• <?php

• $n="Nikul Shah";

• print_r(str_split($n));

?>

Array ( [0] => N [1] => i [2] => k [3] => u [4] => l [5] => [6] => S [7] => h [8] => a [9] => h )

NIKUL SHAH 16

STRCMP()

• The strcmp() function compares two strings.

• <?php

• echo strcmp("Nikul","Nik");

• ?>

• 2

NIKUL SHAH 17

STRTOLOWER()

• Converts string from uppercase to lower case.

• <?php

• echo strtolower("Nikul Shah");

• ?>

NIKUL SHAH 18

STRTOUPPER()

• Converts string from lowercase to upper case.

• <?php

• echo strtoupper("Nikul Shah");

• ?>

NIKUL SHAH 19

TRIM()

• This function removes the while space.

• <?php

• $str = "Nikul Shah!";

• echo $str . "<br>";

• echo trim($str,"Nik");

• ?>

• Nikul Shah!

ul Shah!

NIKUL SHAH 20

NUMBER_FORMAT()

• This function formats a number with grouped.

• <?php

• echo number_format("100000",1);

• ?>

• 100,000.0

NIKUL SHAH 21

RTIRM()

• Removes white space or other char. From right hand side of the string.

• <?php

• $str = "Nikul Shah!";

• echo $str . "<br>";

• echo rtrim($str,"l Sah!");

• ?>

• Nikul Shah!

Niku

NIKUL SHAH 22

STR_IREPLACE()

• Replaces some char of the string.

• <?php

• echo str_ireplace("Nikul", "hi","hey hello");

• ?>

• hey hello

NIKUL SHAH 23

STR_REPEAT()

• str_repeat() function repeats a string a specified number of times.

• <?php

• echo str_repeat("Nikul",10);

• ?>

• NikulNikulNikulNikulNikulNikulNikulNikulNikulNikul

NIKUL SHAH 24

STR_REPLACE()

• <?php

• $r=array("hello","hey", "Nikul","hello");

• print_r(str_replace("hello","hi",$r,$i));

• echo"<br>";

• echo "replacements are :$i";

• ?>

• Array ( [0] => hi [1] => hey [2] => Nikul [3] => hi )

replacements are :2

NIKUL SHAH 25

STR_SHUFFLE()

• <?php

• echo str_shuffle("Nikul");

• ?>

• ikuNl

NIKUL SHAH 26

STR_WORD_COUNT()

• Counts the word in the string.

• <?php

• echo str_word_count("Nikul Shah");

• ?>

• 2

NIKUL SHAH 27

STRCASECMP()

<?php

• echo strcasecmp("Nikul","Nikul");

• ?>

• 0 If this function returns 0, the two strings are equal.

• 0 - if the two strings are equal

• <0 - if string1 is less than string2

• >0 - if string1 is greater than string2

NIKUL SHAH 28

STR_PAD()

• <?php

• $str = "Hello Nikul";

• echo str_pad($str,40,".");

• ?>

• Hello Nikul.............................

NIKUL SHAH 29

STRCSPN()

• Retruns the no of char found in a string before any part of some specified char are found.

• <?php

• $str = "Hello Nikul";

• echo strcspn($str,"N");

• ?>

• 6

NIKUL SHAH 30

STRCHR()

• Finds the first occurrence of a string inside another string . Alias strstr().

• This is case sensitive.

• <?php

• $str = "Hello Nikul";

• echo strchr($str,“Nikul");

• ?>

NIKUL SHAH 31

STRISTR()

• Finds the first occurrence of a string inside another string . Alias strstr().

• This is case insensitive.

• $str = "Hello Nikul";

• echo strchr($str,“nikul");

• ?>

NIKUL SHAH 32

STRIPOS()

• stripos() function finds the position of the first occurrence of a string inside another string.

• <?php

• echo stripos("today is Sunday","Sunday");

• ?>

NIKUL SHAH 33

STRSPN()

• Returns the number of characters found in a string that contains only characters from a

specified charlist

• <?php

• echo strspn("Nikul","ikul");

• ?>

• 0

NIKUL SHAH 34

CONVERT_UUENCODE()

• <?php

$str = "Hello Nikul!";

echo convert_uuencode($str);

?>

• convert_uudecode()

• $decodeString = convert_uudecode($encodeString);

echo $decodeString;

NIKUL SHAH 35

ENJOYED !!! ???

NEXT ARRAY.

BY NIKUL SHAH

NIKUL SHAH 36