我正在尝试使用strstr()
查找字符串是否包含某个文本$t = "http://site.com/image/d2737cda28cb420c972f7a0ce856cf22";
var_dump(strstr('/image/', $t));
exit;
但这会给false
。为什么要给予fasle?如何解决?
答案 0 :(得分:2)
您的参数已反转(请参阅strstr
)。这是使用它的正确方法:
strstr($t, '/image/');
答案 1 :(得分:2)
你应该使用strpos,更快,更少的资源,使用手册与你的vars
<?php
$t = "http://site.com/image/d2737cda28cb420c972f7a0ce856cf22";
$findme = '/image/';
$pos = strpos($t, $findme);
// Note our use of ===. Simply == would not work as expected
// because the position of 'a' was the 0th (first) character.
if ($pos === false) {
echo "The string '$findme' was not found in the string '$mystring'";
} else {
echo "The string '$findme' was found in the string '$mystring'";
echo " and exists at position $pos";
}
?>
答案 2 :(得分:0)
尝试这样做
<?php
$t = "http://site.com/image/d2737cda28cb420c972f7a0ce856cf22";
var_dump(strstr($t, '/image/'));
exit;
?>
答案 3 :(得分:0)