how to create multiple file upload in php - php

Question

I'm a beginner in php and now doing a project in php. I want to upload images(maximum four image files only)
.I used the following code to upload images.
<?php if(isset($_POST['submit'])) {
$count=count($_FILES["images"]["name"]);
for($i=0;$i<$count;$i++) { if ((($_FILES["images"]["type"][$i] == "image/gif") || ($_FILES["images"]["type"][$i] == "image/jpeg") || ($_FILES["images"]["type"][$i] == "image/pjpeg")) && ($_FILES["images"]["size"][$i] < 100000)) {
if ($_FILES["images"]["error"][$i] > 0) { echo "File Error : " . $_FILES["images"]["error"][$i] . "<br />"; } else { echo "Upload File Name: " . $_FILES["images"]["name"][$i] . "<br />"; echo "File Type: " . $_FILES["images"]["type"][$i] . "<br />"; echo "File Size: " . ($_FILES["images"]["size"][$i] / 1024) . " Kb<br />";
if (file_exists("public/images/".$_FILES["images"]["name"][$i] )) { echo "<b>".$_FILES["images"]["name"][$i] . " already exists. </b>"; } else {
move_uploaded_file($_FILES["images"]["tmp_name"][$i] ,"public/images/". $_FILES["images"]["name"][$i] );
echo "Stored in: " . "public/images/" . $_FILES["images"]["name"][$i] ."<br />"; ?> Uploaded File:<br> <img src="public/images/<?php echo $_FILES["images"]["name"][$i] ; ?>" alt="Image path Invalid" > <?php } } }else { echo "Invalid file detail ::<br> file type ::".$_FILES["images"]["type"][$i] ." , file size::: ".$_FILES["images"]["size"][$i] ; } } }?>

Answer 1

First: Please, learn to indent!
Your count is bad. You are counting the $_FILES['images']['name'] size, but you need to count how many $_FILES['images'] there are. So change your code like this (note the new position of [$i] keys):
<?php
if (isset($_POST['submit'])) {
$count = count($_FILES["images"]);
for ($i = 0; $i < $count; $i++) {
if ((($_FILES["images"][$i]["type"] == "image/gif") || ($_FILES["images"][$i]["type"] == "image/jpeg") || ($_FILES["images"][$i]["type"] == "image/pjpeg")) && ($_FILES["images"][$i]["size"] < 100000)) {
if ($_FILES["images"][$i]["error"] > 0) {
echo "File Error : " . $_FILES["images"][$i]["error"] . "<br />";
} else {
echo "Upload File Name: " . $_FILES["images"][$i]["name"] . "<br />";
echo "File Type: " . $_FILES["images"][$i]["type"] . "<br />";
echo "File Size: " . ($_FILES["images"][$i]["size"] / 1024) . " Kb<br />";
if (file_exists("public/images/" . $_FILES["images"][$i]["name"])) {
echo "<b>" . $_FILES["images"][$i]["name"] . " already exists. </b>";
} else {
move_uploaded_file($_FILES["images"][$i]["tmp_name"], "public/images/" . $_FILES["images"][$i]["name"]);
echo "Stored in: " . "public/images/" . $_FILES["images"][$i]["name"] . "<br />";
?> Uploaded File:
<br>
<img src="public/images/
<?php echo $_FILES["images"][$i]["name"]; ?>" alt="Image path Invalid" >
<?php
}
}
} else {
echo "Invalid file detail ::<br> file type ::" . $_FILES["images"][$i]["type"] . " , file size::: " . $_FILES["images"][$i]["size"];
}
}
}?>
This code works assuming your html is something like this:
<input type="file" name="images[]" />
<input type="file" name="images[]" />
<input type="file" name="images[]" />
<input type="file" name="images[]" />
<input type="file" name="images[]" />
<input type="file" name="images[]" />