Jul 6, 2023 · Backend Development

How to Convert a Positive Number to Negative in PHP Using Multiplication

This article explains how to convert a positive integer to a negative one in PHP by using either the multiplication operator (*) or the multiplication‑assignment operator (*=), and provides clear code examples for both methods.

BackendTutorialmultiplication

0 likes · 2 min read

How to Convert a Positive Number to Negative in PHP Using Multiplication

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Apr 22, 2021 · Backend Development

Comparing Three PHP Methods to Multiply an Integer by 1000: String Concatenation, Direct Multiplication, and 1024‑Minus‑24 Approximation

This article examines three ways to enlarge a positive integer by a factor of one thousand in PHP—concatenating "000", multiplying by 1000, and using the expression X*1024‑X*24—benchmarks each method with ten million iterations, analyses the performance results, and discusses why the binary‑based formula may be slower than direct multiplication.

BackendBenchmarkPHP

0 likes · 6 min read

Comparing Three PHP Methods to Multiply an Integer by 1000: String Concatenation, Direct Multiplication, and 1024‑Minus‑24 Approximation