php 用php在符号前剪切字符串
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Cut string before a symbol with php
提问by Jin Yong
How can I cut the string before '(' sign with php
如何在 '(' 用 php 符号之前剪切字符串
For example: $a = "abc dec g (gold)";
例如：$a = "abc dec g (gold)";
How can I cut the string become only "abc dec g"??
我怎样才能把字符串剪成只有“abc dec g”？？
I tried to used this strstr($a, '(', true) but error display.
我尝试使用这个 strstr($a, '(', true) 但错误显示。
回答by Paolo Bergantino
You could do this, using explode:
你可以这样做，使用explode：
list($what_you_want,) = explode('(', $str, 2);
Or you could also do this, using substrand strpos:
$what_you_want = substr($str, 0, strpos($str, '('));
The reason you got the error using strstris because the last argument is not available unless you have PHP 5.3.0 or later.
使用时出现错误strstr的原因是最后一个参数不可用，除非您有 PHP 5.3.0 或更高版本。
回答by Niran
$a=substr($a, 0, strpos($a, '('));
回答by caktux
回答by Joan-Diego Rodriguez
Using this piece of code is indeed a good solution:
使用这段代码确实是一个很好的解决方案：
$what_you_want = substr($str, 0, strpos($str, '('));
Still, I would like to point to the fact that it will cut your string at the first occurence of "(". Shoud you want to cut it at the LAST occurence of "(", you should use
不过，我想指出这样一个事实，它会在第一次出现“(”时切断你的字符串。如果你想在最后一次出现“(”时切断它，你应该使用
$what_you_want = substr($str, 0, strrpos($str, '('));
I found it to be often the case when scrapping html content for example (because of nested tags).
例如，我发现在废弃 html 内容时经常出现这种情况（因为嵌套标签）。
Cheers, Joan
干杯，琼
