<?php
$name = "Hello Name";
$name =str_replace("Name", "First Name", $name);
echo $name; // Hello First Name
?>
Convert the first character of each word in a string into uppercase – PHP
<?php
echo ucwords("hello name"); // Hello Name
?>
Convert the first letter into lower case – PHP
<?php
echo lcfirst("Name"); // name
?>
Convert the first letter into uppercase – PHP
<?php
echo ucfirst("name"); //Name
?>
Convert the string into upper case – PHP
<?php
echo strtoupper("name"); // Name
?>
Convert the string into lower case – PHP
<?php
echo strtolower("FIRST NAME") //first name
?>
Remove spaces from the beginning and end of a string – PHP
<?php
echo trim(" Test "); // Test
//Will remove the spaces from the beginning and end
?>
How to read all the keys or a subset of the keys of an array – PHP
<?php $testArray = array(1 => 5, "name" => "First Name"); print_r(array_keys($testArray)); //Array ( [0] => 1 [1] => name ) ?>
Check whether a variable is empty – PHP
<?php // Example 1 $string=""; if(empty($string)) echo "Empty string"; else echo "Not an empty string"; //Empty string ?> <?php // Example 2 $strng="Test"; if(empty($strng)) echo "Empty string"; else echo "Not an empty string"; //Not an empty string ?>
Add backslashes in front of special characters – PHP
<?php $str = "Test's"; echo addslashes($str); //Test's ?>