How to set the file size in php: first find and open the "php.ini" configuration file; then set the switch that allows file uploading through HTTP; then find the "upload_max_filesize" item and modify the maximum value of the uploaded file size; Finally, set the maximum value that the form POST can receive to PHP.
php.ini method to modify the size limit of php upload files
Open php.ini, first find
file_uploads = on ;是否允许通过HTTP上传文件的开关。默认为ON即是开 upload_tmp_dir ;文件上传至服务器上存储临时文件的地方，如果没指定就会用系统默认的临时文件夹 upload_max_filesize = 8m ;望文生意，即允许上传文件大小的最大值。默认为2M post_max_size = 8m ;指通过表单POST给PHP的所能接收的最大值，包括表单里的所有值。默认为8M
Generally, after setting the above four parameters, uploading a file of
But if you want to upload a large file >8M, it will definitely work if you only set the above four items.
Further configure the following parameters
max_execution_time = 600 ;每个PHP页面运行的最大时间值(秒)，默认30秒 max_input_time = 600 ;每个PHP页面接收数据所需的最大时间，默认60秒 memory_limit = 8m ;每个PHP页面所吃掉的最大内存，默认8M
After modifying the above parameters, you can upload large files under normal circumstances allowed by the network
max_execution_time = 600 max_input_time = 600 memory_limit = 32m file_uploads = on upload_tmp_dir = /tmp upload_max_filesize = 32m post_max_size = 32m
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