PHP - String Functions


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PHP string functions are the part of the core. There is no installation required to use this function

List of Functions

PHP − indicates the earliest version of PHP that supports the function.

Sr.No Function & Description PHP
1 addcslashes

It returns the string with blackslashes

4
2 addslashes

It returns the string with blackslashes in front of predefined characters

4
3 bin2hex

It is used to convert primary data to hexadecimal representation

4
4 chop

It is used to removes whitespace

4
5 chr

It returns the specific characters

4
6 chunk split

It is used to split a string into chunks.

5
7 convert cyr string

It is used to convert from one Cyrillic character set to another

4
8 convert uudecode

It is used to decode a encoded string

5
9 count chars

It is used to returns the information about character used in a string

4
10 Crc32

It is used to calculates 32-bit CRC

4
11 crypt

It is used to hashing the string

4
12 Echo

It is give the output as one or more string

4
13 explode

It is used to split a string by string

4
14 fprintf

It is used to write a formatted string to a stream

5
15 get html translation table

It returns the translation table used by htmlspecialchars() and htmlentities()

4
16 hebrev

It is used to convert logical Hebrew text to visual text

4
17 Hebrevc

It is used to convert logical Hebrew text to visual text with newline conversion

4
18 hex2bin

It is used to convert a string of hexadecimal to ASCII character

4
19 html entity decode

It is used to convert HTML entities to their application characters

4
20 htmlentities

It is used to convert all applicable characters to Html entities

5.4
21 html special chars decode

It is used to convert convert special HTML entities back to characters.

5.1.0
22 htmlspecialchars

It is used to convert special characters to HTML entities

4
23 implode

It is used to Join array elements with a string.

5
24 join

It is alias of implode(), it returns string from the elements of an array

4
25 lcfirst

It is used to make a string's first character should be lowercase.

5.3.0
26 levenshtein

It is used calculate Levenshtein distance between two strings

4.0.1
27 localeconv

It is used to get numeric formatting information

4
28 ltrim

It used to strip whitespace or other characters from the beginning of a string

4
29 md5_file

It is used to calculates the md5 hash of a given file

4
30 md5

It is used to calculates the md5 hash of a string

4
31 metaphone

It is used to calculates the metaphone key of a string

4
32 money format

It is used to formats a number as a currency string

4.3.0
33 nl langinfo

It has contained information about language and locale

4.3.0
34 nl2br

It Inserts HTML line breaks before all newlines in a string

4
35 number format

It is used to formats a number with grouped thousands

4
36 ord

It returns ASCII Value of character

4
37 parse str

It is used to parses the string into variables

4
38 print

It returns output a string

4
39 printf

It returns output a formatted string

4
40 quoted printable decode

It is used to convert the quoted printable string to 8 bit string

4
41 quoted printable decode

It is used to convert the quoted printable string to 8 bit string

4
42 quoted printable encode

It is used to convert 8 bit string to the quoted printable string

4
43 quotemeta

It is used to quote meta characters

4
44 rtrim

It is used to remove the white spaces from end of the string

4
45 setlocale

It is used to set locale information

4
46 sha1 file

It is used to calculate the sha1 hash of a file

4
47 sha1

It is used to calculate the sha1 hash of a string

4
48 similar text

It is used to calculate the similarity between two strings

4
49 soundex

It is used to calculate the soundex key of string

4
50 sprintf

It is used to a formatted string

4
51 str getcsv

It is used to parse parse a CSV string into array

4
52 str ireplace

It is used to replace the characters with some other characters

5
53 str pad

It is used to pads a string to a new length.

4.0.1
54 str repeat

It is used to repeat a string

4
55 str replace

It is used to replace the string with another string

4
56 str rot13

It is used to perform the rot13 transform on a string

4
57 str shuffle

It is used to randomly shuffles a string

4.3.0
58 str split

It is used to convert a string to an array

5
59 str word count

It returns information about words used in a string

5
60 strcasecmp

It is used to compare two strings

4
61 strchr

It is used to searches for the first occurrence of a string inside another

4
62 strcmp

It is used to compare two strings

4
63 strcoll

It is used to compare two strings based on locale

4.0.5
64 strcspn

It returns number of characters find in a string before any part of the specified characters are found.

4
65 strip tags

It is used to string HTML and PHP tags from a string.

4
66 stripcslashes

It is used to removes backslashes

4
67 stripos

It is used to find the position of first occurrence of a string inside the another string

4
68 stripslashes

It is used to un-quoted a quoted string

4
69 stristr

It is used searches for the first occurrence of a string inside another string.

4
70 strlen

It is used get string length.

4
71 strnatcasecmp

It is used compare two strings with a natural algorithm.

4
72 strnatcmp

It is used compare two strings with a natural order algorithm.

4
73 strncasecmp

It is used compare two strings.

4
74 strncmp

It is used compare first n character.

4
75 strpbrk

It is used search's a string for a specific character.

5
76 strpos

It is used to find the position of first occurrence of a string inside another string.

4
77 strrchr

It is used to find the last occurrence of a character in a string.

4
78 strrev

It is used to reverse a string.

4
79 strripos

It is used find the position of the last occurrence of a string inside the another string

5
80 strspn

It returns number of characters found in the string from the charlist parameter.

4
81 strstr

It is used to find the first occurrence of a string

4
82 strtok

It is a tokenize string

4
83 strtolower

It used to make a string lower case

4
84 strtoupper

It used to make a string upper case

4
85 strtr

It used to translates character or replace substring

4
86 substr_compare

It used to compare two string format with a specific start position

4
87 substr_count

It used to count the number of sub strings

4
88 substr_replace

It used to replace the part of string with another string

4
89 substr

It used to return a part of a string

4
90 trim

It used to remove the whitespaces and other characters

4
91 ucfirst

It used to convert the first character of a string to upper case

4
92 ucwords

It used to convert the first character of a string to upper case in each string

4
93 vfprintf

It used to convert formatted string to specific output

5
94 vprintf

It used to convert string to formatted string

4.1
95 vsprintf

It returns the formatted string

4.1
96 wordwrap

It used to convert the long words to be broken and its arrange to the next line

4.0.2

php_function_reference.htm

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