addcslashesQuote string with slashes in a C style
addslashesQuote string with slashes
bin2hexConvert binary data into hexadecimal representation
chopAlias of rtrim
chrReturn a specific character
chunk_splitSplit a string into smaller chunks
convert_cyr_stringConvert from one Cyrillic character set to another
convert_uudecodeDecode a uuencoded string
convert_uuencodeUuencode a string
count_charsReturn information about characters used in a string
crc32Calculates the crc32 polynomial of a string
cryptOne-way string hashing
echoOutput one or more strings
void echo ( string $arg1 [, string $... ] )

explodeSplit a string by string
fprintfWrite a formatted string to a stream
get_html_translation_tableReturns the translation table used by htmlspecialchars and htmlentities
hebrevConvert logical Hebrew text to visual text
hebrevcConvert logical Hebrew text to visual text with newline conversion
html_entity_decodeConvert all HTML entities to their applicable characters
htmlentitiesConvert all applicable characters to HTML entities
htmlspecialchars_decodeConvert special HTML entities back to characters
htmlspecialcharsConvert special characters to HTML entities
implodeJoin array elements with a string
joinAlias of implode
lcfirstMake a string's first character lowercase
levenshteinCalculate Levenshtein distance between two strings
localeconvGet numeric formatting information
ltrimStrip whitespace (or other characters) from the beginning of a string
md5_fileCalculates the md5 hash of a given file
md5Calculate the md5 hash of a string
metaphoneCalculate the metaphone key of a string
money_formatFormats a number as a currency string
nl_langinfoQuery language and locale information
nl2brInserts HTML line breaks before all newlines in a string
number_formatFormat a number with grouped thousands
ordReturn ASCII value of character
parse_strParses the string into variables
printOutput a string
printfOutput a formatted string
quoted_printable_decodeConvert a quoted-printable string to an 8 bit string
quoted_printable_encodeConvert a 8 bit string to a quoted-printable string
quotemetaQuote meta characters
rtrimStrip whitespace (or other characters) from the end of a string
setlocaleSet locale information
sha1_fileCalculate the sha1 hash of a file
sha1Calculate the sha1 hash of a string
similar_textCalculate the similarity between two strings
soundexCalculate the soundex key of a string
sprintfReturn a formatted string
sscanfParses input from a string according to a format
str_getcsvParse a CSV string into an array
str_ireplaceCase-insensitive version of str_replace.
str_padPad a string to a certain length with another string
str_repeatRepeat a string
str_replaceReplace all occurrences of the search string with the replacement string
str_rot13Perform the rot13 transform on a string
str_shuffleRandomly shuffles a string
str_splitConvert a string to an array
str_word_countReturn information about words used in a string
strcasecmpBinary safe case-insensitive string comparison
strchrAlias of strstr
strcmpBinary safe string comparison
strcollLocale based string comparison
strcspnFind length of initial segment not matching mask
strip_tagsStrip HTML and PHP tags from a string
stripcslashesUn-quote string quoted with addcslashes
striposFind position of first occurrence of a case-insensitive string
stripslashesUn-quotes a quoted string
stristrCase-insensitive strstr
strlenGet string length
strnatcasecmpCase insensitive string comparisons using a "natural order" algorithm
strnatcmpString comparisons using a "natural order" algorithm
strncasecmpBinary safe case-insensitive string comparison of the first n characters
strncmpBinary safe string comparison of the first n characters
strpbrkSearch a string for any of a set of characters
strposFind position of first occurrence of a string
strrchrFind the last occurrence of a character in a string
strrevReverse a string
strriposFind position of last occurrence of a case-insensitive string in a string
strrposFind position of last occurrence of a char in a string
strspnFinds the length of the first segment of a string consisting entirely of characters contained within a given mask.
strstrFind first occurrence of a string
strtokTokenize string
strtolowerMake a string lowercase
strtoupperMake a string uppercase
strtrTranslate certain characters
substr_compareBinary safe comparison of two strings from an offset, up to length characters
substr_countCount the number of substring occurrences
substr_replaceReplace text within a portion of a string
substrReturn part of a string
trimStrip whitespace (or other characters) from the beginning and end of a string
ucfirstMake a string's first character uppercase
ucwordsUppercase the first character of each word in a string
vfprintfWrite a formatted string to a stream
vprintfOutput a formatted string
vsprintfReturn a formatted string
wordwrapWraps a string to a given number of characters