PHP/Codeigniter - For Loop [Undefined offset] - php

Question

for($i=0;$i<count($status);$i++)
{
$conf = array(
'source_image' => $status[$i]['full_path'],
'new_image' => $this->upload_path . '/thumbs',
'maintain_ratio' => true,
'width' => 200,
'height' => 200
);
$this->load->library('image_lib', $conf);
$this->image_lib->resize();
$this->image_lib->clear(); // complete reset
$this->image_lib->initialize($conf); // complete reset
}
.
always keep missing the last thumbnail creation cycle. when trying for($i=0;$i<=count($status);$i++). i get this notice Undefined offset

Answer 1

By using a for loop you are assuming that the keys of the array are contiguous, which they may not be. You are also assuming that every second level array has a full_path key, which it may not. Use foreach instead, and do an isset() check on the full_path key:
foreach ($status as $item)
{
if (!isset($item['full_path'])) continue;
$conf = array(
'source_image' => $item['full_path'],
'new_image' => $this->upload_path . '/thumbs',
'maintain_ratio' => true,
'width' => 200,
'height' => 200
);
$this->load->library('image_lib', $conf);
$this->image_lib->resize();
$this->image_lib->clear(); // complete reset
$this->image_lib->initialize($conf); // complete reset
}

Answer 2

try this:
$this->load->library('image_lib');
$stat = array_values($status);
for($i=0;$i<count($stat);$i++)
{
$conf = array(
'source_image' => $stat[$i]['full_path'],
'new_image' => $this->upload_path . '/thumbs',
'maintain_ratio' => true,
'width' => 200,
'height' => 200
);
$this->image_lib->initialize($conf); // complete reset
$this->image_lib->resize();
}