0
answers
0
I do some form validation to ensure that the file a user uploaded is of the right type. But the upload is optional, so I want to skip the validation if he didn't upload anything and submitted the rest of the form. How can I check whether he uploaded something or not? Will $_FILES['myflie']['size'] <=0 work?
Your Answer
0 answers
Hot tools Tags
Hot Questions
"unrecognized import path" with go get
2026-01-02 17:22:05
What does the "[^][]" regex mean?
2026-01-02 17:01:15
How to pivot a MySQL entity-attribute-value schema
2026-01-02 16:43:10
How to Get True Size of MySQL Database?
2026-01-02 16:22:32
How to sort pandas dataframe by one column
2026-01-02 16:01:29
Popular tool
vc9-vc14 (32+64 bit) runtime library collection (link below)
Download the collection of runtime libraries required for phpStudy installation
VC9 32-bit
VC9 32-bit phpstudy integrated installation environment runtime library
PHP programmer toolbox full version
Programmer Toolbox v1.0 PHP Integrated Environment
VC11 32-bit
VC11 32-bit phpstudy integrated installation environment runtime library
SublimeText3 Chinese version
Chinese version, very easy to use
Hot Topics
Douyin level price list 1-75
20416
7
20416
7
wifi shows no ip assigned
13574
4
13574
4
Hot Article
What is the 'basis' of a currency contract? What impact does it have on perpetual contract prices?
2025-12-26
By DDD
How to set up price alerts so you don't miss key entry points?
2026-01-01
By DDD
Tutorial on existence check of nested array values in PHP multidimensional array
2025-12-28
By DDD
How to draw dotted lines in PS How to draw various dotted lines in PS
2025-12-28
By DDD