Delete a File
Deletes one existing file only after realpath() confirms it is a file under an approved base directory.
Open SnippetSnippet Library
Practical pure PHP patterns that are easy to study, adapt and use.
Copy a File
Copies one file from an approved source directory to an approved destination directory without overwriting existing files unless explicitly allowed.
Open SnippetRename or Move a File
Renames or moves a file inside an approved base directory after checking the source file, destination directory, overwrite rule, and path boundaries.
Open SnippetThe Difference Between isset() and empty()
Compares isset(), empty(), and array_key_exists() across common values so missing keys, nulls, zeroes, and blank strings are handled intentionally.
Open SnippetUsing var_dump() for Detailed Debugging
Captures var_dump() output for a value so type and structure details can be reviewed during development without leaking debug text to normal page output.
Open SnippetUsing print_r() for Readable Debugging
Uses print_r() with return capture to produce readable array or object inspection text during controlled development debugging.
Open SnippetSet HTTP Response Code
Sets an allowed HTTP response code with http_response_code() after validating the code against a small explicit allowlist.
Open SnippetGet All HTTP Request Headers
Reads HTTP request headers from getallheaders() when available or from server variables using explicit HTTP header key conversion.
Open SnippetModify a DateTime Object
Modifies a DateTimeImmutable value with an explicit timezone and returns original and adjusted dates without mutating the original value.
Open SnippetHeredoc Syntax for Multi-line Strings
Demonstrates heredoc syntax for readable multi-line strings with variable interpolation and returns a trimmed message body.
Open SnippetNowdoc Syntax for Multi-line Strings
Demonstrates nowdoc syntax for literal multi-line strings where dollar signs and variable-looking text remain unchanged.
Open SnippetSimple XML Creation
Creates a small XML document with SimpleXMLElement, adds child nodes and attributes, and returns the XML string.
Open Snippet