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The following javscript function emulates phps 'in_array', this nifty function searches through an array to check if a value is within the array, it will also support any level of a multi dimensional array (arrays within arrays). However with that said, I don't suggest using this on a massive multi dimensional array, not sure how quickly it'd execute, but feel free to crash test it =P in_array = function(_needle, _haystack)
{
if (typeof _haystack == 'object')
{
for (n = 0; n < _haystack.length; n++)
{
if (_needle == _haystack[n])
{
return true
}
if (typeof _haystack[n] == 'object')
{
return in_array(_needle, _haystack[n])
}
}
}
return false
}Usage: if (in_array('find me', searchArray))
{
alert('found')
}
else
{
alert('not found')
}As you've guessed, the function returns true on success, and false on failure. Hope this is of some use  - Zero Tolerance
Last Edit: Nov 4, 2005 17:33:58 GMT by Zero Tolerance
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That's not build into PHP? I thought it was 
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This is for JavaScript he said. It clones the PHP function. Good job ZT.
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This is for JavaScript he said. It clones the PHP function. Good job ZT. ooh...I knew that >_< I was actually thinking about making one for JS, XD. meh, I'm sleepy. leave me alone
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in_array = function(_needle, _haystack)
{
if (typeof _haystack == 'object')
{
for (var n = 0; n < _haystack.length; n++)
{
if (_needle == _haystack[n])
return true
if (typeof _haystack[n] == 'object')
{
if(in_array(_needle, _haystack[n]))
return true;
}
}
}
return false
}There's my version of what you made. What I changed: - In yours it would only check the first array if multidimensional, and if it didn't have it the function would return 0, ending the function and stopping future checking. I fixed that by using an if check to see if the value was true, and if so then return it.
- A problem that I ran into is that n was a global variable, so I had to make it local, otherwise doing it my way it would continuously loop through the same things.
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