Home
PHP
Tags
PHP Tutorial
Latest Articles
English
English
简体中文
中文(繁體)
日本語
한국어
Français
Deutsch
မြန်မာဘာသာ
Current Location:
Home
>
Function Categories
>
is_nan
is_nan
Determine whether it is a legal value
Name:
is_nan
Category:
math
Programming Language:
php
One-line Description:
Determine whether it is a legal value.
Related
Use is_nan to determine whether the floating data transmitted by the front-end is legal
10
How to avoid frequent use of is_nan in loops causing performance problems
8
Use is_nan to check whether the user submitted JSON data contains invalid values
9
How to determine whether the calculation result returned by the database is valid through is_nan
10
Application examples for the PHP is_nan function and filter_var
7
How to use is_nan function to detect invalid values in calculation results
7
Common errors in using is_nan function and their solutions
5
How to use is_nan in combination with is_numeric to verify that the input is a number
10
Solve bugs caused by floating numerical errors between is_nan and PHP
3
PHP is_nan combined with strval to avoid type errors
2
How to use the is_nan function to prevent computational crashes caused by illegal data
5
Tips to avoid repeated judgments in PHP with is_nan and is_infinite
2
«
1
2
3
»
Similar Functions
pow
pow
Exponentialexpressio
decoct
decoct
Convertdecimaltoocta
asinh
asinh
Inversehyperbolicsin
atanh
atanh
Antihyperbolictangen
deg2rad
deg2rad
Convertangletoradian
log
log
Naturallogarithm
sinh
sinh
Hyperbolicsine
exp
exp
Calculatetheindexofe
Popular Articles
PHP is_nan and is_float combined use scenarios
How to improve the fault tolerance of code to exception data through is_nan function
How to use the is_nan function to prevent computational crashes caused by illegal data
Solve bugs caused by floating numerical errors between is_nan and PHP
Use is_nan to check whether the user submitted JSON data contains invalid values
How to troubleshoot error return value of PHP mathematical function through is_nan
PHP is_nan Unexpected behavior and solution when judging null values
Example of using is_nan function and is_infinite function