variables Archives - Page 14 of 16

What is the naming convention in Python for variable and function names?

Coming from a C# background the naming convention for variables and method names are usually either camelCase or PascalCase: // C# example string ...

April 17, 2022
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How to check a not-defined variable in JavaScript

I wanted to check whether the variable is defined or not. For example, the following throws a not-defined error alert( x ); How ...

April 16, 2022
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When to use global $post and other global variables?

I am trying to understand when and why I should use the global $post variable. I have tried to do the following on ...

April 15, 2022
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How to trim whitespace from a Bash variable?

I have a shell script with this code: var=`hg st -R "$path"` if...

April 14, 2022
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Passing variables from header.php to template and vice verca

I’ve defined a variable – let’s call it $header_var, which is placed in the header.php file. I would like this variable to be ...

April 14, 2022
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How do I check if a variable exists?

I want to check if a variable exists. Now I’m doing something like this: try: myVar except NameError: # Do something. Are there ...

April 14, 2022
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How to Pass External Variables to Filters/Actions

I find myself needing to pass custom data to a filter provided by a 3rd party plugin. All of the ways I’ve seen ...

April 14, 2022
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“Notice: Undefined variable”, “Notice: Undefined index”, “Warning: Undefined array key”, and “Notice: Undefined offset” using PHP

I’m running a PHP script and continue to receive errors like: Notice: Undefined variable: my_variable_name in C:\wamp\www\mypath\index.php on line 10 Notice: Undefined index: ...

April 13, 2022
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What are all the Properties of the WordPress Post Object?

(Moderator’s note: Title was originally “What are all the variables in the wordpress post object?”) Does anyone know the variables that are stored ...

April 13, 2022
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Best way of passing PHP variable between partials?

I have a variable in header.php, such as: $page_extra_title = get_post_meta($this_page->ID, "_theme_extra_title", true); Once I do: var_dump($page_extra_title); I always get NULL outside of ...

April 10, 2022
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