Text Processing
PHP Manual

Strings

Table of Contents
  • Introduction
  • Installing/Configuring
  • Predefined Constants
  • String Functions
    • addcslashes — Quote string with slashes in a C style
    • addslashes — Quote string with slashes
    • bin2hex — Convert binary data into hexadecimal representation
    • chop — Alias of rtrim
    • chr — Generate a single-byte string from a number
    • chunk_split — Split a string into smaller chunks
    • convert_cyr_string — Convert from one Cyrillic character set to another
    • convert_uudecode — Decode a uuencoded string
    • convert_uuencode — Uuencode a string
    • count_chars — Return information about characters used in a string
    • crc32 — Calculates the crc32 polynomial of a string
    • crypt — One-way string hashing
    • echo — Output one or more strings
    • explode — Split a string by a string
    • fprintf — Write a formatted string to a stream
    • get_html_translation_table — Returns the translation table used by htmlspecialchars and htmlentities
    • hebrev — Convert logical Hebrew text to visual text
    • hebrevc — Convert logical Hebrew text to visual text with newline conversion
    • hex2bin — Decodes a hexadecimally encoded binary string
    • html_entity_decode — Convert HTML entities to their corresponding characters
    • htmlentities — Convert all applicable characters to HTML entities
    • htmlspecialchars — Convert special characters to HTML entities
    • htmlspecialchars_decode — Convert special HTML entities back to characters
    • implode — Join array elements with a string
    • join — Alias of implode
    • lcfirst — Make a string's first character lowercase
    • levenshtein — Calculate Levenshtein distance between two strings
    • localeconv — Get numeric formatting information
    • ltrim — Strip whitespace (or other characters) from the beginning of a string
    • md5 — Calculate the md5 hash of a string
    • md5_file — Calculates the md5 hash of a given file
    • metaphone — Calculate the metaphone key of a string
    • money_format — Formats a number as a currency string
    • nl_langinfo — Query language and locale information
    • nl2br — Inserts HTML line breaks before all newlines in a string
    • number_format — Format a number with grouped thousands
    • ord — Convert the first byte of a string to a value between 0 and 255
    • parse_str — Parses the string into variables
    • print — Output a string
    • printf — Output a formatted string
    • quoted_printable_decode — Convert a quoted-printable string to an 8 bit string
    • quoted_printable_encode — Convert a 8 bit string to a quoted-printable string
    • quotemeta — Quote meta characters
    • rtrim — Strip whitespace (or other characters) from the end of a string
    • setlocale — Set locale information
    • sha1 — Calculate the sha1 hash of a string
    • sha1_file — Calculate the sha1 hash of a file
    • similar_text — Calculate the similarity between two strings
    • soundex — Calculate the soundex key of a string
    • sprintf — Return a formatted string
    • sscanf — Parses input from a string according to a format
    • str_contains — Determine if a string contains a given substring
    • str_decrement — Decrement an alphanumeric string
    • str_ends_with — Checks if a string ends with a given substring
    • str_getcsv — Parse a CSV string into an array
    • str_increment — Increment an alphanumeric string
    • str_ireplace — Case-insensitive version of str_replace
    • str_pad — Pad a string to a certain length with another string
    • str_repeat — Repeat a string
    • str_replace — Replace all occurrences of the search string with the replacement string
    • str_rot13 — Perform the rot13 transform on a string
    • str_shuffle — Randomly shuffles a string
    • str_split — Convert a string to an array
    • str_starts_with — Checks if a string starts with a given substring
    • str_word_count — Return information about words used in a string
    • strcasecmp — Binary safe case-insensitive string comparison
    • strchr — Alias of strstr
    • strcmp — Binary safe string comparison
    • strcoll — Locale based string comparison
    • strcspn — Find length of initial segment not matching mask
    • strip_tags — Strip HTML and PHP tags from a string
    • stripcslashes — Un-quote string quoted with addcslashes
    • stripos — Find the position of the first occurrence of a case-insensitive substring in a string
    • stripslashes — Un-quotes a quoted string
    • stristr — Case-insensitive strstr
    • strlen — Get string length
    • strnatcasecmp — Case insensitive string comparisons using a "natural order" algorithm
    • strnatcmp — String comparisons using a "natural order" algorithm
    • strncasecmp — Binary safe case-insensitive string comparison of the first n characters
    • strncmp — Binary safe string comparison of the first n characters
    • strpbrk — Search a string for any of a set of characters
    • strpos — Find the position of the first occurrence of a substring in a string
    • strrchr — Find the last occurrence of a character in a string
    • strrev — Reverse a string
    • strripos — Find the position of the last occurrence of a case-insensitive substring in a string
    • strrpos — Find the position of the last occurrence of a substring in a string
    • strspn — Finds the length of the initial segment of a string consisting entirely of characters contained within a given mask
    • strstr — Find the first occurrence of a string
    • strtok — Tokenize string
    • strtolower — Make a string lowercase
    • strtoupper — Make a string uppercase
    • strtr — Translate characters or replace substrings
    • substr — Return part of a string
    • substr_compare — Binary safe comparison of two strings from an offset, up to length characters
    • substr_count — Count the number of substring occurrences
    • substr_replace — Replace text within a portion of a string
    • trim — Strip whitespace (or other characters) from the beginning and end of a string
    • ucfirst — Make a string's first character uppercase
    • ucwords — Uppercase the first character of each word in a string
    • utf8_decode — Converts a string from UTF-8 to ISO-8859-1, replacing invalid or unrepresentable characters
    • utf8_encode — Converts a string from ISO-8859-1 to UTF-8
    • vfprintf — Write a formatted string to a stream
    • vprintf — Output a formatted string
    • vsprintf — Return a formatted string
    • wordwrap — Wraps a string to a given number of characters
  • Changelog