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这期内容当中小编将会给大家带来有关如何在php中利用CodeIgniter实现一个图片上传功能,文章内容丰富且以专业的角度为大家分析和叙述,阅读完这篇文章希望大家可以有所收获。
具体内容如下
<?php defined('BASEPATH') OR exit('No direct script access allowed'); class Index extends MY_Controller { function __construct(){ parent::__construct(); $this->load->helper(array('form', 'url')); } /** * 首页 */ public function index() { $this->load->view('upload_form', array('error' => ' ' )); } public function do_upload() { $config['upload_path'] = './data/uploads/'; $config['allowed_types'] = 'gif|jpg|png'; $config['max_size'] = 100; $config['max_width'] = 1024; $config['max_height'] = 768; $this->load->library('upload', $config); if ( ! $this->upload->do_upload('userfile')) { $error = array('error' => $this->upload->display_errors()); $this->load->view('upload_form', $error); } else { $data = array('upload_data' => $this->upload->data()); $this->load->library('image_lib'); list($width, $height) = getimagesize($data['upload_data']['full_path']); $config['image_library'] = 'gd2'; $config['source_image'] = $data['upload_data']['full_path']; $config['maintain_ratio'] = TRUE; if($width >= $height) { $config['master_dim'] = 'height'; }else{ $config['master_dim'] = 'width'; } $config['width'] = 180; $config['height'] = 180; $this->image_lib->initialize($config); $this->image_lib->resize(); $config['maintain_ratio'] = FALSE; if($width >= $height) { $config['x_axis'] = floor(($width * 180 / $height - 180)/2); }else{ $config['y_axis'] = floor(($height * 180 / $width - 180)/2); } $this->image_lib->initialize($config); $this->image_lib->crop(); $this->load->view('upload_success', $data); } } }
上述就是小编为大家分享的如何在php中利用CodeIgniter实现一个图片上传功能了,如果刚好有类似的疑惑,不妨参照上述分析进行理解。如果想知道更多相关知识,欢迎关注亿速云行业资讯频道。
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