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PHP - String Functions
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 |