Program 1
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<head><title>String in PHP Application</title>
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<pre>
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<?php
// $myname=["vivek","rajesh","dipesh","vikas","ravi","vikas"];
// print_r($myname);
// $newname=str_replace("vikas","kapil",$myname);
// print_r($newname);
//$mystr="Data Flair free php course with free Data Flair php course certificate";
// $a=["php","course"];
// $b=["java","subject"];
// $mystr=str_replace($a,$b,$mystr);
//$mystr=str_ireplace("Php","",$mystr);
// echo $mystr;
$mystr="Data Flair free php course with free Data Flair php course certificate";
$mystr=strtr($mystr,'f','F');
echo $mystr."<br>";
// $mystr=substr_replace($mystr,"java script new course ",7,20);
//echo $mystr."<br>";
//str_replace()
// str_ireplace()
//substr_replace()
//strtr()
?>
</pre>
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