<?php
if ( class_exists( “class-name” ) ) {
echo “Exists”;
}
?>
All posts by Pramod T P
Close MySQL connection – PHP
<?php
mysql_close();
?>
Select MySQL database – PHP
<?php
mysql_select_db (DB-NAME)
?>
Create a Connection to a MySQL Database – PHP
mysql_connect(SERVER-NAME,USER-NAME,PASSWORD);
eg:
<?php
mysql_connect(“localhost”,”root”,”user1″);
?>
Align divs horizontally – CSS
Test 1
Test 2
Test 3
Test 4
Test 5
</div>
Add a new widget area – wordpress
if (function_exists(‘register_sidebar’)) {
register_sidebar(array(
‘name’=> ‘Header Area’,
‘id’ => ‘top_tabs’,
‘before_widget’ => ‘<li id=”%1$s”>’,
‘after_widget’ => ‘</li>’,
‘before_title’ => ‘<h2>’,
‘after_title’ => ‘</h2>’,
));
}
Facebook like button
Multiple file upload – PHP
function addfileImages() {
document.getElementById(“totalfileImages”).value = Number(document.getElementById(“totalfileImages”).value) + Number(1);
if(Number(document.getElementById(“totalfileImages”).value)>Number(10)){ document.getElementById(“addButton”).style.display=”none”; document.getElementById(“totalfileImages”).value=10; }
document.getElementById(“fileImages”+document.getElementById(“totalfileImages”).value).style.display=”block”;
}
function removefileImages() {
document.getElementById(“fileImages”+document.getElementById(“totalfileImages”).value).style.display=”none”; document.getElementById(“totalfileImages”).value = Number(document.getElementById(“totalfileImages”).value) – Number(1);
if(Number(document.getElementById(“totalfileImages”).value)
<?php
if(isset($_POST[‘upload’])) {
extract($_POST);
for($i=1;$i<=$totalfileImages;$i++) {
if($_FILES[‘file_image’.$i][‘name’]!=””){
$ext =array_pop(explode(“.”,$_FILES[‘file_image’.$i][‘name’]));
$card_image =”uploads/”.substr(md5(uniqid(rand(),1)),0,32).”.”.$ext;
move_uploaded_file($_FILES[‘file_image’.$i][‘tmp_name’],$card_image) or die(“Could not upload!! make sure that uploads/is writable”);
chmod($card_image,0777) or die(“Could not change permission”);
$success=5;
}else{
$errorList[0]=”Upload all the files “;
} } }?>
<form action=”#” method=”post” enctype=”multipart/form-data”>
<table>
<?php if(count($errorList)>0){ ?>
<tr> <td> </td> <td>
</td> </tr>
<?php } ?>
<?php if($success==5){ ?>
<tr> <td> </td> <td>
File has been uploaded
</td> </tr>
<?php } ?>
<tr> <td valign=”top”>Select file</td> <td> <?php $maxFiles=10; ?>
<?php for($i=2;$i<=$maxFiles;$i++) { ?>
<?php } ?>
<input type=”hidden” id=”totalfileImages” name=”totalfileImages” value=”1″ /> </td>
</tr>
<tr> <td> </td> <td><input name=”upload” type=”submit” value=” Upload ” /> </td> </tr>
</table>
</form>
File upload – PHP
<?php
if(isset($_POST[‘upload’])) {
if($_FILES[‘uploadFile’][‘name’]!=””) {
$ext =array_pop(explode(“.”,$_FILES[‘uploadFile’][‘name’]));
$name_img = substr(md5(uniqid(rand(),1)),0,32);
$uploadFile =”uploads/”.$name_img.”.”.$ext;
move_uploaded_file($_FILES[‘uploadFile’][‘tmp_name’],$uploadFile) or die(“Could not upload!! make sure that ../uploads/’ is writable”) ;
chmod($uploadFile,0777) or die(“Could not change permission”);
$success=5;
}else{
$errorList[]=”Select the file.”;
}
}
?>
<form action=”#” method=”post” enctype=”multipart/form-data”>
<table>
<?php if(count($errorList)>0){ ?>
<tr> <td> </td> <td>
</td> </tr>
<?php } ?> <?php if($success==5){ ?>
<tr> <td> </td> <td>
File has been uploaded
</td> </tr>
<?php } ?>
<tr>
<td>Select file</td> <td><input name=”uploadFile” type=”file” /> 85×21</td> </tr> <tr> <td> </td> <td><input name=”upload” type=”submit” value=” Upload ” /> </td>
</tr>
</table>
</form>
switch statement – Javascript
function displaySize(sizes){
switch (sizes) {
case “header”:sizeDim=’728 x 90′;break;
case “footer”:sizeDim=’500 x 150′;break;
case “sidebar”:sizeDim=’7263 x 181′;break;
}
document.getElementById(‘dimension’).innerHTML=sizeDim;
}
<table>
<tr>
<td>Select Position</td> <td>
<select name=”banner_position” onchange=”javascript:displaySize(this.value);”>
<option value=”>Select the position</option>
<option value=’header’ >Header</option>
<option value=’footer’ >Footer</option>
<option value=’sidebar’ >Sidebar</option>
</select>
</td>
</tr>
<tr>
<td>Upload image</td> <td> <input type=”file” name=”image” />(Size should be <span id=”dimension”></span>) </td>
</tr>
</table>
Pramod T P 