For me, just outputting variables only works when I know a method should be broken. I use Xdebug in PHP Storm (available on other IDE's and editors as well)
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People also ask
How to debug a PHP website?

It's just a few simple steps:

1
Switch to the debug view.
2
Click the gear to bring up the languages menu.
3
Select PHP. VS Code will generate the default configuration.
4
Reload the PHP server. I've installed another extension called “PHP Server” that makes this simple.
How do I run PHP in debug mode?
Generate a Run/Debug configuration for a PHP script Alternatively, open the script in the editor, press Alt Shift F9 , and select the script to be debugged. The IDE will launch the script with the debugger enabled, and open the Debug tool window.
How to debug PHP code in Chrome?
Q: How to debug PHP in Chrome? A: You can easily debug PHP in Chrome using a simple extension called PHP Console. Just install this PHP debugging tool from the Chrome web store and start logging errors, warnings, exceptions, and vars dump on your Chrome browser.
How to debug PHP in VS Code?
Open the PHP file you want to debug in VsCode. Set a breakpoint by clicking on the line number where you want the execution to pause. Launch the debug view in VsCode by clicking on the bug icon in the sidebar or pressing Ctrl+Shift+D. F5 or click the “Start Debugging” button to begin debugging.
About debugging in PHP ¶. PHP is shipped with a basic command line interactive debugger, phpdbg. Most IDEs have support for » Xdebug, a free debug tool, ...
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1997-2024 the PHP Documentation Group. Copyright · PHP Manual · Preface · Getting Started · Introduction · A simple tutorial.
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Turns on verbose request information useful for debugging, the debug information is stored in the debugInfo member. Alternatively, the debug member can be ...
Performs debugging operations using the Fred Fish debugging library. Parameters ¶. options. A string representing the debugging operation to perform. The debug ...
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debug_backtrace() generates a PHP backtrace. Parameters ¶. options. This parameter is a bitmask for the following options: debug_backtrace() options ...
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This function will resolve objects to their class name, resources to their resource type name, and scalar values to their common name as would be used in type ...
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This new major version brings with it a number of new features and some incompatibilities that should be tested for before switching PHP versions in production ...
debug_print_backtrace() prints a PHP backtrace. It prints the function calls, included/required files and eval()ed stuff. Parameters ¶. options.
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This function displays structured information about one or more expressions that includes its type and value. Arrays and objects are explored recursively ...