Working with Numbers and Strings in PHP

This series of tutorials covers everything you need to know to work with numbers and strings in PHP.

1 Integer and Floating Point Numbers in PHP

2 4 Ways to Round a Number in PHP

3 Mathematical Operations in PHP

4 How to calculate exponential numbers in PHP

5 How to format a number with leading zeros in PHP

6 How to format a float number to 2 decimal places in PHP

7 How to calculate Fibonacci in PHP

8 PHP: How to convert integer to binary and vice versa

9 PHP: How to Convert a String to a Number

10 PHP: How to Convert a Number to Hex and Vice Versa

11 PHP: How to create a random number between Min and Max

12 PHP: How to generate N random numbers in a range

13 PHP: How to calculate leap years

14 PHP: How to convert numbers to bytes and vice versa

15 PHP: Formatting large numbers with commas as thousand separators

16 PHP: Extracting Numbers from Text (3 Approaches)

17 PHP: Check if a number is a prime number

18 PHP: Check if a Number is Integer or Float

19 PHP: How to format a float to fixed width/length

20 Explore built-in PHP functions to work with numbers

21 PHP: Mapping numbers to words (e.g. 1 to ‘one’, 2 to ‘two’)

22 PHP: Convert bytes to KB, MB, GB and vice versa

23 PHP: Adding suffixes to numbers (e.g. 1st, 2nd, 3rd, 4th)

24 PHP: Checking if a Number is Odd or Even

25 PHP: Formatting thousand, million as K, M (e.g. 1k, 2m)

26 PHP: 4 Ways to Check if a Number is in a Range

27 PHP: Checking if a Number is Positive, Negative or Zero

28 PHP: Extract Decimal and Integer Parts from a Float (3 Ways)

29 PHP: Understanding scientific notation (e.g. 1.2e3)

30 PHP error: Division by zero (4 solutions)

31 PHP string built-in functions and methods cheat sheet

32 Single-Quotes and Double-Quotes in PHP

33 PHP: How to convert '\n' to HTML 'br' tag

34 PHP: How to create multiline strings

35 PHP: How to convert a string to lowercase and uppercase

36 PHP: How to get the length of a string

37 PHP: 5 Ways to Check if a String is Empty

38 PHP: 3 Ways to count the number of words in a string

39 Slicing Strings in PHP: A Developer's Guide

40 Find and Replace Substrings in PHP: A Practical Guide

41 PHP: Check if a string contains a substring

42 Base64 Encoding and Decoding in PHP: A Complete Guide

43 PHP: Convert a string to an array and vice versa

44 PHP: Turn a string into an array of characters

45 PHP: Convert a string to hex and vice versa

46 PHP: Convert a string to binary and vice versa

47 PHP: Convert a string to bytes and vice versa

48 PHP: 4 Ways to Generate a Random String

49 PHP: Remove leading and trailing whitespace from a string

50 PHP: Remove multiple consecutive whitespaces from a string

51 Exploring PHP Greedy Regex Quantifiers

52 PHP: Remove multiple consecutive empty lines from a string

53 PHP: 3 Ways to Validate an Email Address

54 PHP: 3 Ways to Validate a URL

55 PHP: Get domain and username from an email address

56 PHP: 4 Ways to Validate an IP Address

57 PHP: Get filename and file extension from a URL

58 PHP: 3 Ways to Validate a Phone Number

59 PHP: 3 Ways to Validate Credit Card Patterns

60 PHP: Extract URLs from a string

61 PHP: How to Escape Double Quotes in a String

62 PHP: How to compare two strings case-insensitively

63 5 Ways to concatenate strings in PHP

64 PHP: How to Mix a String with Variables

65 PHP regular expressions cheat sheet

66 PHP: How to iterate over characters in a string

67 PHP: How to Convert a Title to a Slug

68 PHP: Count the occurrences of a substring in a string

69 Process escape sequences in a string in PHP

70 How to reverse a string in PHP

71 PHP: How to convert a string to char codes and vice versa

72 PHP: How to remove HTML tags from a string

73 PHP: Split a string into N evenly sized chunks

74 PHP: Format price with currency symbol

75 PHP: Get the size of a string in bytes

76 PHP: Search and Replace Substrings in a File

77 PHP: Check if a string starts or ends with another string

78 PHP: How to Generate Random Hex Color Codes

79 PHP: How to Unescape HTML Entities

80 PHP: Get nth character of a string

81 PHP: Generate a random string from a list of given characters

82 PHP: How to format strings to fixed width

83 PHP: Remove all non-alphanumeric characters from a string

84 PHP: Convert query string to an object and vice versa

85 PHP: Convert a string into an object and vice versa

86 PHP: 2 ways to check if a string contains a number

87 PHP: \r, \n, and \t - Explained with Examples

88 PHP: Check if a string can be converted to a number

89 PHP: Check if a string can be converted to date time

90 PHP: Remove Accent Marks from a String

91 PHP regex with word boundaries

92 PHP regex with case-insensitive matching

93 PHP Advanced Regex Examples

94 PHP: How to Extract Domain, Protocol, and Path from URL

Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments