PHP string processing

Remove Space  trim ($ processed string, $ to remove string)   LTrim  RTrim
<? php$ss= "D   I am a tesad"; $s =trim($ss, ' d '); echo $s;? >
Corresponds to Python:a.lstrip (), A.rstrip (), A.strip (), A.strip ("ACC")


Inserts a character in a string  chunk_split ($ processed string, interval, inserted string)

<?php
Echo chunk_split ("Iamasmallgogo", 2, ","); Ia,ma,sm,al,lg,og,o,
Echo chunk_split ("Iamasmallgogo", 1, ","); I,a,m,a,s,m,a,l,l,g,o,g,o,
?>

The frequency of occurrences of individual characters in a numeric character string Count_chars ($ processed string, pattern)

<?php
$data = "I have some II habasome";
Var_dump (Count_chars ($data, 1));
Var_dump (Count_chars ($data, 3));
?>

Array (10) {
[32]=>int (4)
[97]=>int (3)
[98]=>int (1)
[101]=>int (3)
[104]=>int (2)
[105]=>int (3)
[109]=>int (2)
[111]=>int (2)
[115]=>int (2)
[118]=>int (1)
}
String (Ten) "Abehimosv"

Sets the string by delimiter array explode ( string $delimiter , string $string [, int $limit ])

<?php
$data = "I have some II habasome";
Var_dump (Explode ("", $data));
Var_dump (Explode ("", $data, 2));
?>

Array (5) {
[0]=>
String (1) "I"
[1]=>
String (4) "has"
[2]=>
String (4) "some"
[3]=>
String (2) "II"
[4]=>
String (8) "Habasome"
}
Array (2) {
[0]=>
String (1) "I"
[1]=>
String (*) "has some II Habasome"
}

Link an array into a string by delimiter

string implode ( string $glue , array $pieces ) string implode ( array $pieces ) alias join

<?php

$array = Array (' LastName ', ' email ', ' phone ');
$comma _separated = Implode (",", $array);

echo $comma _separated; Lastname,email,phone

?>

string lcfirst $str - makes the first character of a string lowercase

string MD5 ( string $str [, bool $raw_output = false]) computes the MD of the string 5 Hash value

string nl2br ( string $string [, bool $is_xhtml = TRUE ]) Inserts an HTML wrap tag before all new lines in the string

string Str_pad (string $input , < Span class= "type" >int $pad _length [, String $pad _string = "" [, int $pad _type = Str_pad_right]]) fills the string to the specified length /span>

< Span class= "Methodparam" > strin G str_repeat (string $input , int $ Multiplier )     Repeat $input $mutiplier times

Str_replace Replacement string

<?php
$s = "I am jack, I like CB, I have always been nice";
$c = 2;
echo str_replace (' Jack ', ' Tom ', $s). " \ n ";
Echo str_replace ([' Jack ', ' CB ', ' nice '],[' Tom ', ' RB ', ' bad '], $s). " \ n ";
?>

I'm jack, I like CB, I've always been nice.
I'm Tom, I like RB, I've always been bad.
String str_shuffle ( string $str )

<?php

$str = "Hello Friend";

$arr 1 = str_split ($STR);
$arr 2 = Str_split ($STR, 3);

Print_r ($arr 1);
Print_r ($arr 2);

?>

Array (    [0] = H    [1] ~ = e    [2] = = L    [3] = = L    [4] = O    [5] = =    [6] = = F    [7] = = R    [8] = i    [9] = = e    [ten] = n    [one] + D) Array (    [0] = Hel    [1 ] = Lo    [2] = = Fri    [3] = + END)

int stripos ( string $haystack , string $needle [, int $offset = 0])

Returns haystack needle the number position of the first occurrence in a string.

int strpos ( string $haystack , mixed $needle [, int $offset = 0])

returns needle the haystack number position that first appears in the.

string strrev ( string $string )

Returns string the inverted string.

;;;;;;;;; don't want to write ...

PHP string processing