Section 1
Preview this deck
mixed str_replace ( mixed $search , mixed $replace , mixed $subject [, int &$count ] )
Front
| 5 | 0 | ||
| 4 | 0 | ||
| 3 | 0 | ||
| 2 | 0 | ||
| 1 | 0 |
Active users
0
All-time users
0
Favorites
0
Last updated
6 years ago
Date created
Mar 1, 2020
Cards (85)
Section 1
(50 cards)
mixed str_replace ( mixed $search , mixed $replace , mixed $subject [, int &$count ] )
Replace all occurrences of the search string with the replacement string case sensitive version of str_ireplace
string sha1 ( string $str [, bool $raw_output = false ] )
raw_output - If the optional raw_output is set to TRUE, then the sha1 digest is instead returned in raw binary format with a length of 20, otherwise the returned value is a 40-character hexadecimal number.
int crc32 ( string $str )
generate the checksum of a string crc32. similar to md5
string html_entity_decode ( string $string [, int $quote_style = ENT_COMPAT [, string $charset ]] )
Convert all HTML entities to their applicable characters ENT_COMPAT - Will convert double-quotes and leave single-quotes alone. ENT_QUOTES - Will convert both double and single quotes. ENT_NOQUOTES - Will leave both double and single quotes unconverted.
int strcasecmp ( string $str1 , string $str2 )
Binary safe case-insensitive string comparison Returns < 0(negative) if str1 is less than str2; > 0(positive) if str1 is greater than str2, and 0 if they are equal.
int printf ( string $format [, mixed $args [, mixed $... ]] )
similar to sprintf but in outputs to the screen instead
string metaphone ( string $str [, int $phonemes = 0 ] )
Calculates the metaphone key of str. Similar to soundex() metaphone creates the same key for similar sounding words. It's more accurate than soundex() as it knows the basic rules of English pronunciation. The metaphone generated keys are of variable length. phonemes - This parameter restricts the returned metaphone key to phonemes characters in length. The default value of 0 means no restriction. Metaphone was developed by Lawrence Philips <lphilips at verity dot com>. It is described in ["Practical Algorithms for Programmers", Binstock & Rex, Addison Wesley, 1995].
array explode ( string $delimiter , string $string [, int $limit ] )
Returns an array of strings, each of which is a substring of string formed by splitting it on boundaries formed by the string delimiter.
int levenshtein ( string $str1 , string $str2 [ , int $cost_ins , int $cost_rep , int $cost_del ] )
The Levenshtein distance is defined as the minimal number of characters you have to replace, insert or delete to transform str1 into str2 It can be used only for strings with less than 255 characters
mixed str_ireplace ( mixed $search , mixed $replace , mixed $subject [, int &$count ] )
Case-insensitive version of str_replace().
join()
This function is an alias of: implode().
array str_getcsv ( string $input [, string $delimiter = ',' [, string $enclosure = '"' [, string $escape = '\\' ]]] )
Parse a CSV string into an array Similar to fgetcsv() this functions parses a string as its input unlike fgetcsv() which takes a file as its input.
int ord ( string $string )
Returns the ASCII value of the first character of string.
string str_shuffle ( string $str )
Randomly shuffles a string
string crypt ( string $str [, string $salt ] )
will return a hashed string using the standard Unix DES-based algorithm or alternative algorithms that may be available on the system. <?php $password = crypt('mypassword'); // let the salt be automatically generated if (crypt($user_input, $password) == $password) { echo "Password verified!"; }
string chunk_split ( string $body [, int $chunklen = 76 [, string $end = "\r
" ]] )
Split a string into smaller chunks
returns:
A string
$chunk = "ryanwright";
print func($chunk,2,".");
//ouputs ry.an.wr.ig.ht.
string -Required. Specifies the string to split
length - Optional. A number that defines the length of the chunks. Default is 76
end - Optional. A string that defines what to place at the end of each chunk. Default is \r
strchr()
Alias of strstr()
string nl2br ( string $string [, bool $is_xhtml = true ] )
Inserts HTML line breaks before all newlines in a string
chop()
This function is an alias of: rtrim().
int strcspn ( string $str1 , string $str2 [, int $start [, int $length ]] )
Returns the length of the initial segment of str1 which does not contain any of the characters in str2. Returns the length of the segment as an integer. ex. print strcspn("ryan is king", "na"); //returns 2 print strcspn("ryan is king", "n"); //returns 3 print strcspn("ryan is king", "nr"); //returns 0 print strcspn("ryan is king", "nr",1); //returns 2 print strcspn("ryan is king", "nr",3); //returns 0
string str_repeat ( string $input , int $multiplier )
Returns input repeated x amount of times. x is the second argument
string htmlentities ( string $string [, int $flags = ENT_COMPAT [, string $charset [, bool $double_encode = true ]]] )
This function is identical to htmlspecialchars() in all ways, except all characters which have HTML character entity equivalents are translated into these entities. ' is not encoded by default. ENT_COMPAT Will convert double-quotes and leave single-quotes alone. ENT_QUOTES Will convert both double and single quotes. ENT_NOQUOTES Will leave both double and single quotes unconverted. ENT_IGNORE Silently discard invalid code unit sequences instead of returning an empty string. Added in PHP 5.3.0. This is provided for backwards compatibility; avoid using it as it may have security implications.
string sha1_file ( string $filename [, bool $raw_output = false ] )
Calculates the sha1 hash of the file specified by filename using the » US Secure Hash Algorithm 1, and returns that hash. The hash is a 40-character hexadecimal number. raw_output - When TRUE, returns the digest in raw binary format with a length of 20. When TRUE, returns the digest in raw binary format with a length of 20.
string htmlspecialchars ( string $string [, int $flags = ENT_COMPAT [, string $charset [, bool $double_encode = true ]]] )
This function encodes & ' < > " to there equivalent html entities. ' is not encoded by default the ENT_QUOTES flat needs to be set 5.2.3 When double_encode is false off PHP will not encode existing html entities, the default is to convert everything. This function is useful in preventing user-supplied text from containing HTML markup, such as in a message board or guest book application. The translations performed are: * '&' (ampersand) becomes '&' * '"' (double quote) becomes '"' when ENT_NOQUOTES is not set. * ''' (single quote) becomes ''' only when ENT_QUOTES is set. * '<' (less than) becomes '<' * '>' (greater than) becomes '>'
string number_format ( float $number , int $decimals = 0 [ , string $dec_point = '.' , string $thousands_sep = ','] )
Format a number, specify the number of decimals, the thousand character and the decimal point character This function accepts either one, two, or four parameters (not three): NUMBER IS ROUNDED
string str_rot13 ( string $str )
Performs the ROT13 encoding on the str argument and returns the resulting string. The ROT13 encoding simply shifts every letter by 13 places in the alphabet while leaving non-alpha characters untouched. Encoding and decoding are done by the same function, passing an encoded string as argument will return the original version.
void parse_str ( string $str [, array &$arr ] )
Parses str as if it were the query string passed via a URL and sets variables in the current scope. should be in the format of 'name=ex&age=10' If the second parameter arr is present, variables are stored in this variable as array elements instead. returns: NO VALUE IS RETURNED Note: The magic_quotes_gpc setting affects the output of this function, as parse_str() uses the same mechanism that PHP uses to populate the $_GET, $_POST, etc. variables.
string lcfirst ( string $str )
lcfirst — Make a string's first character lowercase Note that 'alphabetic' is determined by the current locale. For instance, in the default "C" locale characters such as umlaut-a (ä) will not be converted.
string convert_uudecode ( string $data )
Uuencode a string Uuencoding is a form of binary-to-text encoding that originated in the Unix program uuencode, for encoding binary data for transmission over the uucp mail system. It has now been largely replaced by MIME and yEnc. With MIME, files that might have been uuencoded are transferred with base64 encoding.
string bin2hex ( string $str )
Convert binary data(A STRING) into hexadecimal representation It takes the ascii representation of the string and converts it into HEX for ex. "23" becomes "3233" acii value of 2 =50 ascii value of 3 = 51 the hex of 50 = 32 the hex of 51 = 33 Returns an ASCII string containing the hexadecimal representation of str. The conversion is done byte-wise with the high-nibble first.
array str_split ( string $string [, int $split_length = 1 ] )
split a string into an an array based on the length you specified. default length is 1
mixed str_word_count ( string $string [, int $format = 0 [, string $charlist ]] )
Counts the number of words inside string. If the optional format is not specified, then the return value will be an integer representing the number of words found. In the event the format is specified, the return value will be an array, content of which is dependent on the format. The possible value for the format and the resultant outputs are listed below. For the purpose of this function, 'word' is defined as a locale dependent string containing alphabetic characters, which also may contain, but not start with " ' "(comma) and "-"(hyphen) characters. Format * 0 - returns the number of words found * 1 - returns an array containing all the words found inside the string * 2 - returns an associative array, where the key is the numeric position(where it starts) of the word inside the string and the value is the actual word itself charlist - A list of additional characters which will be considered as 'word'
int similar_text ( string $first , string $second [, float &$percent ] )
Calculate the similarity between two strings. Returns the number of characters that match ex. func('ryan','ryam') returns 3 By passing a reference as third argument, similar_text() will calculate the similarity in percent for you. $word1 = "ryan"; $word2 = "nayr"; $match = similar_text($word1, $word2); this seems to return 1 for some reason with 25% similarity
mixed sscanf ( string $str , string $format [, mixed &$... ] )
it is the input analog of printf(). it reads from the string str and interprets it according to the specified format, which is described in the documentation for sprintf(). This function basically does the reverse Any whitespace in the format string matches any whitespace in the input string. This means that even a tab \t in the format string can match a single space character in the input string. --Optionally pass in variables by reference that will contain the parsed values. * Function is not locale-aware. * F, g, G and b are not supported. * D stands for decimal number. * i stands for integer with base detection. * n stands for number of characters processed so far.
int strcoll ( string $str1 , string $str2 )
Locale based string comparison Note that this comparison is case sensitive, and unlike strcmp() this function is not binary safe. uses the current locale for doing the comparisons. If the current locale is C or POSIX, this function is equivalent to strcmp().
string sprintf ( string $format [, mixed $args [, mixed $... ]] )
Returns a string produced according to the formatting string format. similar to printf but returns the results instead
string convert_uudecode ( string $data )
Decode a uuencoded string Uuencoding is a form of binary-to-text encoding that originated in the Unix program uuencode, for encoding binary data for transmission over the uucp mail system. It has now been largely replaced by MIME and yEnc. With MIME, files that might have been uuencoded are transferred with base64 encoding.
string htmlspecialchars_decode ( string $string [, int $quote_style = ENT_COMPAT ] )
This function is the opposite of htmlspecialchars(). It converts special HTML entities back to characters. The converted entities are: &, " (when ENT_NOQUOTES is not set), ' (when ENT_QUOTES is set), < and >. ENT_COMPAT Will convert double-quotes and leave single-quotes alone (default) ENT_QUOTES Will convert both double and single quotes ENT_NOQUOTES Will leave both double and single quotes unconverted
string str_pad ( string $input , int $pad_length [, string $pad_string = " " [, int $pad_type = STR_PAD_RIGHT ]] )
This functions returns the input string padded on the left, the right, or both sides to the specified padding length. If the optional argument pad_string is not supplied, the input is padded with spaces, otherwise it is padded with characters from pad_string up to the limit. Optional argument pad_type can be STR_PAD_RIGHT, STR_PAD_LEFT, or STR_PAD_BOTH. If pad_type is not specified it is assumed to be STR_PAD_RIGHT.
string addcslashes ( string $str , string $charlist )
Returns a string with backslashes before characters that are listed in charlist parameter.
A list of characters to be escaped. If charlist contains characters
, \r etc., they are converted in C-like style, while other non-alphanumeric characters with ASCII codes lower than 32 and higher than 126 converted to octal representation.
you can you ranges ex. 'A..z'
echo addcslashes('foo[ ]', 'A..z');
Be careful if you choose to escape characters 0, a, b, f, n, r, t and v. They will be converted to \0, \a, \b, \f,
, \r, \t and \v. In PHP \0 (NULL), \r (carriage return),
(newline), \f (form feed), \v (vertical tab) and \t (tab) are predefined escape sequences, while in C all of these are predefined escape sequences.
charlist like "\0..\37", which would escape all characters with ASCII code between 0 and 31.
string chr ( int $ascii )
take the ascii code and return its string representation
mixed count_chars ( string $string [, int $mode = 0 ] )
return an array with the ascii value as the index and the number of times each character occured in the string. Or possibly a string based on the mode used # 0 - an array with ascii value as the index and the of occurrence of each as value. # 1 - same as 0 but only chars with a frequency greater than zero are listed. # 2 - same as 0 but only char with a frequency equal to zero are listed. # 3 - a string containing all unique characters is returned. # 4 - a string containing all not used characters is returned ex. "adej"
void echo ( string $arg1 [, string $... ] )
similar to print. it outputs to the screen. is not actually a function (it is a language construct), so you are not required to use parentheses with it. echo() (unlike some other language constructs) does not behave like a function, so it cannot always be used in the context of a function. Additionally, if you want to pass more than one parameter to echo(), the parameters must not be enclosed within parentheses. echo() also has a shortcut syntax, where you can immediately follow the opening tag with an equals sign. This short syntax only works with the short_open_tag configuration setting enabled.
string money_format ( string $format , float $number )
returns a formatted version of number. This function wraps the C library function strfmon(), with the difference that this implementation converts only one number at a time.
Available only in linux. it does not round
format:
#n - Left precision
.p - Right precision
i - format international ex. for US currency is USD
n - format local for ex. Denmark is EU
ex.
// %i, let's print the international format for the en_US locale
setlocale(LC_MONETARY, 'en_US');
echo money_format('%i', $number) . "
";
// USD 1,234.56
// Italian national format with 2 decimals`
echo money_format('%.2n', $number) . "
";
// US national format, using () for negative numbers
// and 10 digits for left precision
echo money_format('%(#10n', $number) . "
";
// ($ 1,234.57)
int print ( string $arg )
this is similar to "echo" it is not actually a real function (it is a language construct) so you are not required to use parentheses with its argument list.
int strcmp ( string $str1 , string $str2 )
Binary safe string comparison(case sensitive)
string addslashes ( string $str )
Returns a string with backslashes before characters that need to be quoted in database queries etc. These characters are single quote ('), double quote ("), backslash (\) and NUL (the NULL byte). it's highly recommended to use DBMS specific escape function (e.g. mysqli_real_escape_string() for MySQL or pg_escape_string() for PostgreSQL)
string implode ( string $glue , array $pieces )
Join array elements with a glue(string) string
array get_html_translation_table ([ int $table = HTML_SPECIALCHARS [, int $quote_style = ENT_COMPAT ]] )
Returns the translation table used by htmlspecialchars() and htmlentities() returns: an array Index is the string and value is the encoded value There are two new constants (HTML_ENTITIES, HTML_SPECIALCHARS) that allow you to specify the table you want.
string soundex ( string $str )
Calculate the soundex key of a string seems to be more accurate than metaphone
Section 2
(35 cards)