str_replace正在替换我的字符串中的所有部分。

Question

My original string looks like this

value='' tabindex='500'

I would like to replace the string with this

value='Email:' tabindex='500' onclick=\"if (this.value=='Email:') {this.value='';}

So I use this str_replace function

$userForm = str_replace("value='' tabindex='500'", "value='Email:' tabindex='500' onclick=\"if (this.value=='Email:') {this.value='';}\"",$userForm);  

My output ends up being this

value="" tabindex="500" onfocus=" if (this.value == '') { this.value = ''; }"   

If you notice, everything except for the parts that include 'value="Email:" are replaced correctly...

I was hoping someone might have an idea on why this is happening? Any help would be greatly appreciated. Thank you in advance!

Answer 1

You may be looking for something like:

$userForm = preg_replace('/value=\'\' tabindex=\'(.*?)\'/i', 'value=\'Email:\' tabindex=\'$1\' onclick="if (this.value==\'Email:\') {this.value=\'\';}', $userForm);

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Result:

value='Email:' tabindex='500' onclick="if (this.value=='Email:') {this.value='';} 

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preg_replace