Some Important Functions of PHP

Sample 1 : strpos() Function Usage

As $name2 is "Feroz"
12
it will used to show the value location of starting $name2

Sample 2 : strlen() Function Usage

As $name1 is "Samee Ullah Feroz"
17= it will used to show the lenght of String $name1

Sample 3 : strtolower() Function Usage

samee ullah feroz

Sample 4 : strtoupper() Function Usage

SAMEE ULLAH FEROZ

Sample 5 : ucfirst() Function Usage

Samee ullah feroz

Sample 6 : ucwords() Function Usage

Samee Ullah Feroz

Sample 7 : implode() Function Usage

Samee_Ullah_Feroz

Sample 8 : explode() Function Usage

array (size=3)
  0 => string 'Samee' (length=5)
  1 => string 'Ullah' (length=5)
  2 => string 'Feroz' (length=5)

Sample 9 : substr() Function Usage

Ullah Feroz
Feroz
oz

Samee Ullah Feroz
Feroz
eroz
e Ullah Feroz

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     <h1 align="center">Some Important Functions of PHP : <a href="http://sameearticles.blogspot.com" target="_blank">Samee Articles</a></h1>  
       <h2 align="left">Sample 1 : strpos() Function Usage</h2>  
         <?php  
                          $name1 = "Samee Ullah Feroz";  
                          $name2 = "Feroz";  
                          echo 'As $name2 is "Feroz"<br />';  
                          echo strpos($name1, $name2) . "<br />it will used to show the value location of starting \$name2"  
         ?>  
       <h2 align="left">Sample 2 : strlen() Function Usage</h2>  
         <?php  
                          $name1 = "Samee Ullah Feroz";  
                          $name2 = "Feroz";  
                          echo 'As $name1 is "Samee Ullah Feroz"<br />';  
                          echo strlen("$name1") . "=\tit will used to show the lenght of String \$name1";  
                          //And We can also write Full Name in the place of $name1 and also we can write string either with double qoutes or without qoutes  
         ?>  
       <h2 align="left">Sample 3 : strtolower() Function Usage</h2>  
         <?php  
                          $name1 = "Samee Ullah Feroz";  
                          $name2 = "Feroz";  
                          echo strtolower($name1); //As it is used to convert all letters to lower case.  
         ?>  
       <h2 align="left">Sample 4 : strtoupper() Function Usage</h2>  
         <?php  
                          $name1 = "Samee Ullah Feroz";  
                          $name2 = "Feroz";  
                          echo strtoupper($name1); //As it is used to Convert all letters to upper case (Capital Letters)  
         ?>  
       <h2 align="left">Sample 5 : ucfirst() Function Usage</h2>  
         <?php  
                          $name1 = "samee ullah feroz";  
                          $name2 = "Feroz";  
                          echo ucfirst($name1); //As it is used to Convert 1st letter to upper case (Capital Letter)  
         ?>  
       <h2 align="left">Sample 6 : ucwords() Function Usage</h2>  
         <?php  
                          $name1 = "samee ullah feroz";  
                          $name2 = "Feroz";  
                          echo ucwords($name1); //As it is used to Convert each 1st letter to upper case (Capital Letters)  
         ?>  
       <h2 align="left">Sample 7 : implode() Function Usage</h2>  
         <?php  
                          $name1 = array("Samee","Ullah","Feroz");  
                          $name2 = "Feroz";  
                          echo implode("_",$name1); //As it is used to join the array values and add specific charactor among each value.  
         ?>  
       <h2 align="left">Sample 8 : explode() Function Usage</h2>  
         <?php  
                          $name1 = "Samee Ullah Feroz";  
                          $name2 = "Feroz";  
                          $name3 = explode(" ",$name1);  
                          var_dump($name3);  
         ?>  
       <h2 align="left">Sample 9 : substr() Function Usage</h2>  
         <?php  
                          echo substr("Samee Ullah Feroz",18)."<br />";  
                          echo substr("Samee Ullah Feroz",6)."<br />";  
                          echo substr("Samee Ullah Feroz",11)."<br />";  
                          echo substr("Samee Ullah Feroz",15)."<br />";  
                          echo "<br>";  
                          // Negative numbers:  
                          echo substr("Samee Ullah Feroz",-18)."<br />";  
                          echo substr("Samee Ullah Feroz",-6)."<br />";  
                          echo substr("Samee Ullah Feroz",-4)."<br />";  
                          echo substr("Samee Ullah Feroz",-13)."<br />";  
         ?>  
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Some Important Functions of PHP : 5th Day Lecture of PHP : Samee