Home > Backend Development > PHP Tutorial > Why Am I Getting a 'Non Well Formed Numeric Value' Error When Parsing Dates in PHP?

Why Am I Getting a 'Non Well Formed Numeric Value' Error When Parsing Dates in PHP?

Barbara Streisand
Release: 2024-11-30 06:56:14
Original
371 people have browsed it

Why Am I Getting a

Encountering "A Non Well Formed Numeric Value" in PHP Date Parsing

When attempting to add dates to a database, you may encounter the error "A non well formed numeric value encountered." This error often occurs when a non-numeric string is passed to a function expecting a numeric value.

In your specific case, you are using the date() function with the "d" format specifier, which expects a Unix timestamp. However, you are passing a string representing a date, such as "2020-10-10." To resolve this issue, you need to use the strtotime() function to convert the string representation of the date to a numeric Unix timestamp.

Understanding the Error

The "A non well formed numeric value encountered" error indicates that a numeric operation is attempting to use a non-numeric value. This can occur in various scenarios:

  • Attempting to use a string containing non-numeric characters in a mathematical operation.
  • Trying to convert a string to a numeric type and the string contains invalid characters.
  • Passing a string to a function that expects a numeric argument.

Resolving the Error

To resolve this error, you need to investigate the source of the non-numeric value. Here are some potential solutions:

  • Validate Input: Ensure that any input from outside sources, such as form fields, is validated to confirm that it contains only numeric characters.
  • Convert Strings to Numbers: If the non-numeric value can be converted to a numeric format, use functions like strtotime() to perform the conversion.
  • Identify Incorrect Data Sources: If the error originates from a function or variable that is returning incorrect numeric values, find and fix the cause of the issue.
  • Avoid Mindless Casting: Never blindly cast non-numeric values to numbers. This can suppress errors and lead to incorrect results.

The above is the detailed content of Why Am I Getting a 'Non Well Formed Numeric Value' Error When Parsing Dates in PHP?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template