Top 100 Most Frequently Used PHP Functions – Frequency and Average Usage
This article lists the 100 most commonly used built‑in PHP functions, showing each function's rank, usage frequency percentage, and average metric, providing developers with a concise reference of essential PHP utilities.
The article presents a ranked list of the 100 most commonly used built‑in PHP functions, based on usage frequency and average execution metrics.
Each entry shows the rank, function name, percentage of usage across surveyed codebases, and an average value indicating relative performance or call count.
Functions such as count, is_array, substr, and in_array dominate the top positions, each exceeding 70% usage frequency.
The remaining list includes array manipulation, string handling, file I/O, and utility functions like json_encode, date, preg_match, and array_merge, providing developers with a quick reference to the most essential PHP built‑ins.
For a detailed view, the original source includes a full table with all 100 functions, their exact frequencies, and average values.
Signed-in readers can open the original source through BestHub's protected redirect.
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