Category Archives: PHP

Pyramid creation using php

Below are the sample code for pyramid creation using php

$pyramid_count=10;
 
 for($i=0;$i<$pyramid_count;$i++)
 {
	   for($j=1;$j<$i;$j++)
	   {
	   echo "&nbsp;";
	   }
   
   
 
  for($k=1; $k<=$pyramid_count-$i; $k++)
      {      
        echo "*";
      }

		 for($s=0;$s<$pyramid_count;$s++)
		 {
		   echo "&nbsp;";
		 
		 
		 }
   echo "</br>";
    }

$pyramid_count=10;

for($i=0;$i<$pyramid_count;$i++)

{

for($j=1;$j<$i;$j++)

{

echo " ";

}

for($k=1; $k<=$pyramid_count-$i; $k++)

{

echo "*";

}

for($s=0;$s<$pyramid_count;$s++)

{

echo " ";

}

echo "</br>";

}

$pyramid_count=10;
 
 for($i=0;$i<$pyramid_count;$i++)
 {
	   for($j=1;$j<$pyramid_count-$i;$j++)
	   {
	   echo "&nbsp;";
	   }
   
   
 
  for($k=1; $k<=$i; $k++)
      {      
        echo "*";
      }

		 for($s=0;$s<$pyramid_count-$i;$s++)
		 {
		   echo "&nbsp;";
		 
		 
		 }
   echo "</br>";
    }

$pyramid_count=10;

for($i=0;$i<$pyramid_count;$i++)

{

for($j=1;$j<$pyramid_count-$i;$j++)

{

echo " ";

}

for($k=1; $k<=$i; $k++)

{

echo "*";

}

for($s=0;$s<$pyramid_count-$i;$s++)

{

echo " ";

}

echo "</br>";

}

Prime Number generation using php

PHP code for generating prime number.IF a number is divisible by 1 and the number itself it is a prime number.in the below code $number_of_time_divide is greater than

Find Non Repetable element from an array using php

Please check the below php script to display non repetable element in an array.this script will remove all repetable elements and display remaining elements.

<?php
$first_array=array(1,2,3,4,1,2,3,4,5,9,10,3,67);
$count=count($first_array);
for($i=0;$i<$count;$i++){
            $check_exist = false;
            for($j=0;$j<$count;$j++){ 
			if($i!=$j)
			{
				 $result_array[$i]=$first_array[$i];
                if($first_array[$i] == $first_array[$j]){
                    
				   $result_array[$i]='';break;
                }
				
				
				
            }
			}
			echo "<br>";
           
        }
		
		 
		 foreach($result_array as $val)
		 {
		 echo $val;echo "<br>";
		 }

?>

<?php

$first_array=array(1,2,3,4,1,2,3,4,5,9,10,3,67);

$count=count($first_array);

for($i=0;$i<$count;$i++){

$check_exist = false;

for($j=0;$j<$count;$j++){

if($i!=$j)

{

$result_array[$i]=$first_array[$i];

if($first_array[$i] == $first_array[$j]){

$result_array[$i]='';break;

}

echo "<br>";

}

foreach($result_array as $val)

{

echo $val;echo "<br>";

}

Change the color of rows in a table using jquery

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>

<script>
$(document).ready(function(){

    $("tr:odd").css("background-color", "yellow");
	$("tr:even").css("background-color","red");
});
</script>
</head>
<title>Changing the background color of tr in a table using jquery</title>
<body>
<table border="1">
<tr>
<td>My first row</td>
</tr>
<tr>
<td>My second row</td>
</tr>

</table>
</body>

</html>

<!DOCTYPE html>

<html>

<head>

$(document).ready(function(){

$("tr:odd").css("background-color", "yellow");

$("tr:even").css("background-color","red");

});

</script>

</head>

<title>Changing the background color of tr in a table using jquery</title>

<body>

<tr>

<td>My first row</td>

</tr>

<tr>

<td>My second row</td>

</tr>

</table>

</body>

</html>

get the span data content using jquery

how to get the different data values from dynamic span elements using jquery,check the below code

<span data-name="vasanthan" data-country="india" class="testspan" >first</span>
<span data-name="Ericson" data-country="USA" class="testspan" >second</span>								  								  
   <script src="http://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<script>

$(".testspan").click(function(){
alert($(this).attr("data-country"));alert($(this).attr("data-name"));
});

<span data-name="vasanthan" data-country="india" class="testspan" >first</span>

<span data-name="Ericson" data-country="USA" class="testspan" >second</span>

$(".testspan").click(function(){

alert($(this).attr("data-country"));alert($(this).attr("data-name"));

});

PDF creation using mpdf library is throwing error in codeigniter.

below code used for generating for pdf. $html== this variable store some html pages $this->load->library(‘mpdf’); $this->mpdf = new mPDF(); $this->mpdf->WriteHTML($html, 2); $this->mpdf->Output($file_name, ‘D’); if we print the html content it is displaying proper means there is no error until the pdf generation. you can use the below code to debug the issue. $mpdf->debug = true;… Read More »

How to disable/enable GD library on xampp

For disable enable GD library open the php.ini file and edit the following line extension=php_gd2.dll if you want to comment add semicolon ;extension=php_gd2.dll

Dynamic updation of textbox value using jquery and php

If you click on the Refresh link in the index.php files jquery will load the textbox value as a dynamic content index.php

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("#display_box").load("load_data.php");
$("#refresh_button").click(function(){

$("#display_box").load("load_data.php");

});
 

 });

</script>
</head>
<body>
<div id="refresh_button" name="refresh_button">Refresh</div>
<div id="display_box"></div>
</body>
</html>

<!DOCTYPE html>

<html>

<head>

$(document).ready(function(){

$("#display_box").load("load_data.php");

$("#refresh_button").click(function(){

$("#display_box").load("load_data.php");

});

</script>

</head>

<body>

<div id="refresh_button" name="refresh_button">Refresh</div>

</body>

</html>

load_data.php

<script>
 var type_of_chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
 var length_needed = 8;
 var generated_string = '';
 for (var i=0; i<length_needed; i++) {
  var random_num = Math.floor(Math.random() * type_of_chars.length);
  generated_string += type_of_chars.substring(random_num,random_num+1);
 }
    $("#name").val(generated_string);
    $("#country").val(generated_string);
    $("#state").val(generated_string);
    $("#city").val(generated_string);
</script>
<div style="background-color:#DADADA;width:243px;height:118px;padding:24px">
Name:    <input type="text" value="" id="name"> <br/>

Country: <input type="text" value="" id="country"><br/>

State:   <input type="text" value="" id="state"><br/>

City:     <input type="text" value="" id="city"><br/>
</div>
<br/>
<div style="background-color:#DADADA;width:243px;height:118px;padding:24px">
static content<br/>
static content<br/>
static content<br/>
static content<br/>
static content<br/>
static content<br/>
</div

var type_of_chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";

var length_needed = 8;

var generated_string = '';

for (var i=0; i<length_needed; i++) {

var random_num = Math.floor(Math.random() * type_of_chars.length);

generated_string += type_of_chars.substring(random_num,random_num+1);

}

$("#name").val(generated_string);

$("#country").val(generated_string);

$("#state").val(generated_string);

$("#city").val(generated_string);

</script>

Name: <input type="text" value="" id="name"> <br/>

Country: <input type="text" value="" id="country"><br/>

State: <input type="text" value="" id="state"><br/>

City: <input type="text" value="" id="city"><br/>

</div>

<br/>

static content<br/>

</div

How to handle ‘undefined’ in javascript

Variable ‘mydata’ is returning the value ‘undefined’, if you give this in an if condition its not working.. if(mydata==”undefined”) this condition should not work.so below code will solve the issue.

<!DOCTYPE html>
<html>
<head>
<script>
function test_type_of()
{
var mydata=document.getElementById('myhidden').val;
if (typeof mydata == 'undefined') {
//if(mydata=="undefined")
//{
alert('test');
}

}
</script>
</head>
<body>
<input type="hidden" value="" name="myhidden" id="myhidden">
<input type="button" name="click_button" id="click_button" value="Click" onclick="test_type_of();">
</body>
</html>

<!DOCTYPE html>

<html>

<head>

function test_type_of()

{

var mydata=document.getElementById('myhidden').val;

if (typeof mydata == 'undefined') {

//if(mydata=="undefined")

//{

alert('test');

}

</script>

</head>

<body>

</body>

</html>

Displaying a textbox content using keypress or click using jquery

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>
$(document).ready(function(){
$('input[name="mybutton"]').click(function(){
     var textal    = $("#mybox").val(); 
	 $("#mydiv").append(textal+'<br/>');
  });


    $('#my_textbox').keypress(function (click_event) {
 var key = click_event.which;
 if(key == 13)  
  {
    $('input[name=mybutton]').click();
    return false;  
  }
});
  

});
</script>
</head>
<body>
<div id="mydiv"></div>
<input type="text" id="my_textbox">
<input type="button" name="mybutton" id="mybutton" value="Click" >
</body>
</html>

<!DOCTYPE html>

<html>

<head>

$(document).ready(function(){

$('input[name="mybutton"]').click(function(){

var textal = $("#mybox").val();

$("#mydiv").append(textal+'<br/>');

});

$('#my_textbox').keypress(function (click_event) {

var key = click_event.which;

if(key == 13)

{

$('input[name=mybutton]').click();

return false;

}

});

</script>

</head>

<body>

</body>

</html>