I am looking for a way to pull the first 100 characters from a string variable to put in another variable for printing.

我正在尋找一種方法，從字符串變量中提取前100個字符，並將其放入另一個變量中進行打印。

Is there a function that can do this easily?

有一個函數(shù)可以很容易地做到這一點嗎?

For example:

例如:

$string1 = "I am looking for a way to pull the first 100 characters from a string variable to put in another variable for printing.";

$string2 = 100charfunction($string1);

print $string2

To get:

得到:

I am looking for a way to pull the first 100 characters from a string vari

6 個解決方案

#1

151

$small = substr($big, 0, 100);

For String Manipulation here is a page with a lot of function that might help you in your future work.

對於字符串操作，這里有一個具有很多功能的頁面，這些功能可能對您以后的工作有所幫助。

#2

28

You could use substr, I guess:

你可以用substr，我猜

$string2 = substr($string1, 0, 100);

or mb_substr for multi-byte strings:

或多字節(jié)串的mb_substr:

$string2 = mb_substr($string1, 0, 100);

You could create a function wich uses this function and appends for instance '...' to indicate that it was shortened. (I guess there's allready a hundred similar replies when this is posted...)

你可以創(chuàng)建一個函數(shù)，它使用這個函數(shù)並附加例如'…表示它被縮短了。(我想當(dāng)這篇文章發(fā)布的時候，已經(jīng)有上百個類似的回復(fù)了…)

#3

19

$x = '1234567';

echo substr ($x, 0, 3); // outputs 123

echo substr ($x, 1, 1); // outputs 2

echo substr ($x, -2); // outputs 67

echo substr ($x, 1); // outputs 234567

echo substr ($x, -2, 1); // outputs 6

#4

18

try this function

試試這個功能

function summary($str, $limit=100, $strip = false) {

$str = ($strip == true)?strip_tags($str):$str;

if (strlen ($str) > $limit) {

$str = substr ($str, 0, $limit - 3);

return (substr ($str, 0, strrpos ($str, ' ')).'...');

}

return trim($str);

}

#5

15

A late but useful answer, PHP has a function specifically for this purpose.

PHP有一個專門用於此目的的函數(shù)，這是一個很晚但很有用的答案。

mb_strimwidth

$string = mb_strimwidth($string, 0, 100);

$string = mb_strimwidth($string, 0, 97, '...'); //optional characters for end

#6

2

Without php internal functions:

沒有php內(nèi)部函數(shù):

function charFunction($myStr, $limit=100) {

$result = "";

for ($i=0; $i

$result .= $myStr[$i];

}

return $result;

}

$string1 = "I am looking for a way to pull the first 100 characters from a string variable to put in another variable for printing.";

echo charFunction($string1);

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