convert an integer into a string in php

1phpCopy<?php  
2$variable = 10;
3$string1 = strval($variable);
4echo "The variable is converted to a string and its value is $string1.";  
5?>
6

1phpCopy<?php  
2$variable = 10;
3$string1 = (string)$variable;
4echo "The variable is converted to a string and its value is $string1.";  
5?>
6

1phpCopy$string = (string)$intVariable 
2

1phpCopystrval($variableName);
2

1phpCopy<?php  
2$variable = 10;
3$string1 = "The variable is converted to a string and its value is ".$variable.".";
4echo "$string1";  
5?>
6

1phpCopy$integer = 5;
2echo "The string is $integer";
3

1phpCopy<?php  
2$variable = 10;
3$string1 = "".$variable;
4echo "$string1";  
5
6$string1 = $variable."";
7echo "$string1";  
8
9?>
10

1phpCopy"First string".$variablename."Second string"
2

1phpCopy<?php  
2$variable = 10;
3echo "The variable is converted to a string and its value is $variable.";  
4?>
5