php 在字符串的第一个空格处拆分
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split at the first space in a string
提问by RieqyNS13
I have a string like this:
我有一个这样的字符串：
red yellow blue
红黄蓝
and I want to get an array like this :
我想得到一个这样的数组：
Array ( [0] => red [1] => yellow blue )
数组（ [0] => 红色 [1] => 黄色蓝色）
how to split at the first space in a string ? my code doesn't work
如何在字符串的第一个空格处拆分？我的代码不起作用
<?php
$str = "red yellow blue";
$preg = preg_split("/^\s+/", $str);
print_r($preg);
?>
please help me.
请帮我。
回答by silkfire
Use explodewith a limit:
explode有限制地使用：
$array = explode(' ', $string, 2);
Just a side note: the 3rd argument of preg_splitis the same as the one for explode, so you could write your code like this as well:
只是一个旁注： 的第三个参数与preg_splitfor 的相同explode，因此您也可以这样编写代码：
$array = preg_split('#\s+#', $string, 2);
References:
参考：
回答by nvanesch
<?php
$string = "red yellow blue";
$result = explode(" ", $string, 2);
print_r($result);
?>
just explode it
爆炸吧
回答by chandresh_cool
回答by user2597484
You can use explode, but if you aren't 100% sure you'll have the same # of spaces (explosions) every time, you can use ltrimto remove the first word and space
您可以使用expand，但如果您不是 100% 确定每次都会有相同的空格数（爆炸），您可以使用ltrim删除第一个单词和空格
<?php
$full='John Doe Jr.';
$full1=explode(' ', $full);
$first=$full1[0];
$rest=ltrim($full, $first.' ');
echo "$first + $rest";
?>
回答by Yussuf Maqsood
You can use explodethis way:
您可以这样使用爆炸：
$stringText = "red yellow blue";
$colours = explode(" ", $stringText);
echo $colours[0]; //red
echo $colours[1]; //yellow
echo $colours[2]; //blue
You can also get all the elements of $colours by foreach Loop, but in this case explode is better
也可以通过 foreach 循环获取 $colours 的所有元素，但这种情况下 expand 更好
