Creating and accessing string in php

creating and accessing string in PHP

Creating and accessing string in PHP

String function

1 strlen(): It is used to find the length of string.

<?php $str="Icoderweb"; echo strlen($str); ?> *****OUTPUT***** 9

2 str_word_count(): It is used to count the number of words in given string.

<?php $str="i am a Software Developer"; echo str_word_count($str); ?>  *****OUTPUT***** 5

3 strpos(): It is used to search a text within a string. If the match is found, the function returns the character position of the first match.

<?php $str="i am a software developer"; echo strpos($str,"software"); ?>   *****OUTPUT***** 7

4 str_replace(): It is used to replace the existing text with given text in a string.

<?php $str="Icoderweb website is a Learning programming "; //Replace the text "telecom" with "software": echo str_replace("website","software",$str); ?> *****OUTPUT***** Icoderweb software is a Learning programming

5 strrev(): It is used to reverse the characters of string.

<?php $str="icoderweb"; echo strrev($str); ?> *****OUTPUT***** bewredoci

6 strtoupper(): It is used to convert all the alphabet of string into uppercase alphabet.

<?php $str="icoderweb"; echo strtoupper($str); ?> *****OUTPUT***** ICODERWEB

7 strtolower(): It is used to convert all the alphabet of string into lowercase alphabet.

<?php $str="ICODERWEB"; echo strtolower($str); ?> *****OUTPUT***** Icoderweb

8 ucfirst(): It is used to convertsthe first character of a string to uppercase.

<?php $str="icoderweb"; echo ucfirst($str); ?> *****OUTPUT***** Icoderweb

9 lcfirst(): Converts the first character of a string to lowercase.

<?php $str="Icoderweb"; echo lcfirst($str); ?> *****OUTPUT***** Icoderweb

10 substr(): It is used to get some parts of the string.

<?php $str="ICODERWEB WEBSITE"; echo substr($str,5,4); ?> *****OUTPUT***** RWEB

11 str_repeat(): It is used to repeats string a specified number of times.

<?php echo str_repeat("Icoderweb ",5); ?> *****OUTPUT***** Icoderweb Icoderweb Icoderweb Icoderweb Icoderweb

12 implode(): It is used to join the array elements with string.

<?php $students=array("icoderweb","website","programming","learning"); echo implode(",",$students); ?> *****OUTPUT***** Icoderweb,website,programming,learning

13 explode(): It is used to break the string into array.

<?php $str = "Have a nice day"; print_r(explode(" ",$str)); ?> *****OUTPUT***** Array ( [0] => Have [1] => a [2] => nice [3] => day )

14 strcmp(): It is used to compare two string. If both strings are same returns zero otherwise non-zero.

<?php $str1 = "icoderweb"; $str2="icoderweb"; if(strcmp($str1,$str2)==0) echo "Both are equal"; else echo "Both are not equal"; ?> *****OUTPUT***** Both are equal

Math function: A math function can be used mathematical operation performs. It is very most useful because all operations and calculations use math functions.

Read More Language String Function

 C String Functions

C++ String Functions

Java String

Python String

<?php echo sin(2)."<br>"; echo cos(2)."<br>"; echo tan(2)."<br>"; echo exp(2)."<br>";//exponential function echo sqrt(4)."<br>";//square root function echo log(2)."<br>";//natural log function echo log10(2)."<br>"; echo pow(2,3)."<br>";//power function echo pi()."<br>";//return PI value /* ?> *****OUTPUT*****  0.909 -0.416 -2.185 7.389 2 0.693 0.301 8 3.141

rand(): It is used to generate random integer values between a given range. Nowadays it is mostly used to generate one-time passwords (OTP).

<?PHP echo rand(1111,9999); ?> *****OUTPUT***** 3379 you will get new value every time

max(): It returns the highest value in an array.

<?php $ar=array(58,51,95,36,15,45,67); echo "Max Value is:".max($ar); ?> *****OUTPUT***** Max Value is:95

min(): It returns the minimum value in an array.

<?php $ar=array(58,51,95,36,15,45,67); echo "Min Value is ".min($ar); ?> *****OUTPUT***** Min Value is 15

floor(): It is used to round a number down to the nearest integer.

<?php echo floor(2.2)."<br>"; echo floor(2.5)."<br>"; echo floor(2.9)."<br>"; ?> *****OUTPUT***** 2 2 2

ceil(): It is used to round a number up to the nearest integer.

<?php echo ceil(2.2)."<br>"; echo ceil(2.5)."<br>"; echo ceil(2.9)."<br>"; ?> *****OUTPUT***** 3 3 3

round(): It is used to round a floating point number.

<?php echo round(2.2)."<br>"; echo round(2.5)."<br>"; echo round(2.9)."<br>"; ?> *****OUTPUT***** 2 3 3

abs(): It always returns positive value.

<?php echo abs(2)."<br>"; echo abs(-2)."<br>"; ?> *****OUTPUT***** 2 2