74 lines
2.7 KiB
Markdown
74 lines
2.7 KiB
Markdown
String Template Resources {#resources.string}
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=========================
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Smarty can render templates from a string by using the `string:` or
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`eval:` resource.
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- The `string:` resource behaves much the same as a template file. The
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template source is compiled from a string and stores the compiled
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template code for later reuse. Each unique template string will
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create a new compiled template file. If your template strings are
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accessed frequently, this is a good choice. If you have frequently
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changing template strings (or strings with low reuse value), the
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`eval:` resource may be a better choice, as it doesn\'t save
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compiled templates to disk.
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- The `eval:` resource evaluates the template source every time a page
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is rendered. This is a good choice for strings with low reuse value.
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If the same string is accessed frequently, the `string:` resource
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may be a better choice.
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> **Note**
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>
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> With a `string:` resource type, each unique string generates a
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> compiled file. Smarty cannot detect a string that has changed, and
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> therefore will generate a new compiled file for each unique string. It
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> is important to choose the correct resource so that you do not fill
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> your disk space with wasted compiled strings.
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<?php
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$smarty->assign('foo','value');
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$template_string = 'display {$foo} here';
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$smarty->display('string:'.$template_string); // compiles for later reuse
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$smarty->display('eval:'.$template_string); // compiles every time
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?>
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From within a Smarty template
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{include file="string:$template_string"} {* compiles for later reuse *}
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{include file="eval:$template_string"} {* compiles every time *}
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Both `string:` and `eval:` resources may be encoded with
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[`urlencode()`](https://www.php.net/urlencode) or
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[`base64_encode()`](https://www.php.net/urlencode). This is not necessary
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for the usual use of `string:` and `eval:`, but is required when using
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either of them in conjunction with
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[`Extends Template Resource`](#resources.extends)
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<?php
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$smarty->assign('foo','value');
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$template_string_urlencode = urlencode('display {$foo} here');
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$template_string_base64 = base64_encode('display {$foo} here');
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$smarty->display('eval:urlencode:'.$template_string_urlencode); // will decode string using urldecode()
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$smarty->display('eval:base64:'.$template_string_base64); // will decode string using base64_decode()
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?>
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From within a Smarty template
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{include file="string:urlencode:$template_string_urlencode"} {* will decode string using urldecode() *}
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{include file="eval:base64:$template_string_base64"} {* will decode string using base64_decode() *}
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