Recent questions tagged php

1 answer 3 views

How to hash a string with SHA-256 in PHP

asked 9 hours ago by avibootz

1 answer 10 views

How to use math functions and constants in PHP

asked 1 day ago by avibootz

3 answers 17 views

How to create a function with an optional parameter in PHP

asked 2 days ago by avibootz

2 answers 27 views

How to decode Leet Speak (where numbers resemble letters (7->T, 1->I, 5->S, 3 -> E)) in PHP

asked 4 days ago by avibootz

1 answer 21 views

How to express a decimal number as a fixed-length string with leading zeros in PHP

asked 5 days ago by avibootz

1 answer 22 views

How to reconstruct a full sparse matrix from a compact (triplet) matrix in PHP

asked 5 days ago by avibootz

1 answer 16 views

How to create an enumeration of constants with and without explicit values in PHP

asked 6 days ago by avibootz

1 answer 25 views

How to compact a sparse matrix in PHP

asked Apr 24 by avibootz

1 answer 26 views

How to check if a given matrix is a sparse matrix (contains a large number of zeros) in PHP

asked Apr 23 by avibootz

1 answer 22 views

How to search for a word in a grid of characters with PHP

asked Apr 23 by avibootz

3 answers 24 views

How to create a generic‑like method in PHP

asked Apr 22 by avibootz

2 answers 36 views

How to localize date format in PHP

asked Apr 19 by avibootz

2 answers 35 views

How to create a tag cloud by wrapping array values in h1 through h6 tags in PHP

asked Apr 18 by avibootz

1 answer 35 views

How to get the number of days needed to wait after a day (a[i]) gets warmer given an array of temperatures in PHP

asked Apr 18 by avibootz

1 answer 39 views

How to rehash a password in PHP

asked Apr 18 by avibootz

1 answer 37 views

How to verify a hashed password in PHP

asked Apr 18 by avibootz

1 answer 35 views

How to hash a password in PHP

asked Apr 18 by avibootz

1 answer 31 views

How to check if a string is title case in PHP

asked Apr 17 by avibootz

5 answers 40 views

How to copy a string using multibyte-safe fin PHP

asked Apr 16 by avibootz

7 answers 38 views

How to copy a string in PHP

asked Apr 16 by avibootz

1 answer 27 views

How to represent the Boolean "true" and "false" in PHP

asked Apr 14 by avibootz

1 answer 26 views

How to calculate relative past time from a given date & time (e.g., 3 hours ago, 5 days ago, a month ago) in PHP

asked Apr 13 by avibootz

4 answers 46 views

How to create an infinite loop in PHP

asked Apr 11 by avibootz

1 answer 31 views

How to add a new interval into a sorted array of non‑overlapping intervals in PHP

asked Apr 9 by avibootz

1 answer 23 views

How to print text diagonally from left to right recursively in PHP

asked Apr 8 by avibootz

1 answer 30 views

How to detect whether any intervals overlap in a list of start and end times with PHP

asked Apr 8 by avibootz

1 answer 31 views

How to find the k biggest values from an array in PHP

asked Apr 6 by avibootz

1 answer 31 views

How to find the maximum value we can achieve by picking k elements from an array in PHP

asked Apr 6 by avibootz

1 answer 35 views

How to check whether only 2 bits in a number at a specific position are on (edge‑case‑safe) with PHP

asked Apr 3 by avibootz

1 answer 34 views

How to write 4 different functions that check if a number is a power of 2 in PHP

asked Apr 2 by avibootz

1 answer 34 views

How to write 6 different functions that accept 5 or 7 and return the other number, without using if,switch in PHP

asked Mar 31 by avibootz

1 answer 32 views

How to copy bits from M into N (numbers) between bit positions i and j (edge‑case‑safe) in PHP

asked Mar 30 by avibootz

1 answer 36 views

How to get the word before the last word from a string (edge‑case‑safe) in PHP

asked Mar 28 by avibootz

1 answer 34 views

How to find the median among three given numbers in PHP

asked Mar 26 by avibootz

1 answer 44 views

How to find the smallest number greater than a given number, using the same digits in PHP

asked Mar 25 by avibootz

2 answers 48 views

How to produce a sequential count in octal, starting at zero in PHP

asked Mar 24 by avibootz

1 answer 34 views

How to calculate the Ethiopian multiplication in PHP

asked Mar 17 by avibootz

1 answer 41 views

How to calculate the percentage change between two values in PHP

asked Mar 16 by avibootz

1 answer 35 views

How to write the 7 Boom game. If a number is divided by 7 or includes the digit 7, the user writes Boom in PHP

asked Mar 15 by avibootz

1 answer 43 views

How to find the longest shared prefix among all words in a string with PHP

asked Mar 14 by avibootz

2 answers 62 views

How to group words in a string by the first N letters in PHP

asked Mar 13 by avibootz

1 answer 55 views

How to find the longest common prefix of all the words in a string with PHP

asked Mar 11 by avibootz

1 answer 37 views

How to get a list of functions that belong to the standard extension in PHP

asked Mar 10 by avibootz

1 answer 31 views

How to get the names of all functions that start with str in PHP

asked Mar 10 by avibootz

1 answer 35 views

How to split a string on multiple multi‑character delimiters (and keep them) in PHP

asked Mar 10 by avibootz

1 answer 36 views

How to split a string on multiple single‑character delimiters (and keep them) in PHP

asked Mar 9 by avibootz

1 answer 34 views

How to remove all adjacent duplicate characters from a string until no more can be removed in PHP

asked Mar 7 by avibootz

1 answer 39 views

How to reverse only the alphabetic characters in a string, keeping other characters in place with PHP

asked Mar 6 by avibootz

1 answer 47 views

How to find missing alphabet characters from a string in PHP

asked Mar 5 by avibootz

1 answer 30 views

How to use the count_chars function with mod 0 (count frequency of string character) with PHP

asked Mar 5 by avibootz

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